US 20: CHESTER TO MONTANA SAFETY CORRIDOR PLAN

Transcription

1 Idaho Transportation Department US 20: CHESTER TO MONTANA SAFETY CORRIDOR PLAN November 2016 Prepared for: Prepared by: Idaho Transportation Department, District 6 Kittelson & Associates, Inc. 206 N. Yellowstone Avenue Rigby, Idaho (208) South Capitol Boulevard, Suite 301 Boise, ID 82 (208) MOVINGFORWARDTHINKINGTM

2 US 20: Chester to Montana Safety Corridor Plan Fremont County, Idaho Final November 2016

3 US 20: Chester to Montana Safety Corridor Plan Fremont County, Idaho Prepared For: Idaho Transportation Department, District N. Yellowstone Avenue Rigby, Idaho (208) Prepared By: Kittelson & Associates, Inc. 101 South Capitol Boulevard, Suite 301 Boise, ID 82 (208) Project Manager: John Ringert, P.E. Project Planner: Nick Foster, A.I.C.P. Project No November 2016

4 Table of Contents TABLE OF CONTENTS Executive Summary... 2 Introduction... 7 Project Purpose and Background... 7 Roadway Summary... 9 Other Ongoing Projects... 9 Organization of the Report... 9 Safety and Operations Analysis Traffic Operations Crash Analysis Summary Project Alternatives Project Alternatives Considered Recommendations Comparative Summary of Alternative Treatments Recommended Long-Term Configuration of US References iii Kittelson & Associates, Inc.

5 Table of Contents LIST OF FIGURES Figure 1 Study Area, Lane Types, and Grades... 8 Figure 2 Year 2015 Traffic Volumes by Month (ATR #32 - Ashton) Figure 3 Existing Lane Types and Existing and Projected Traffic Operations Figure 4 Crashes by Severity ( ) Figure 5 Crashes by Road Surface Condition ( ) Figure 6 Annual Crashes by Road Surface Condition Figure 7 Ice/Snow Conditions at Henrys Lake RWIS Station ( ) Figure 8 Crashes by Type ( ) Figure 9 Intersection Crashes ( ) Figure 10 Comparison of Crash Rates and HSCA Scores Along US Figure 11 Expected vs. Observed Crash Rate Figure 12 Expected Crash Rate, Winter Weather Road Surface Crashes, and Animal Crashes Figure 13 Expected Crash Rate and Lane Departure Crashes Figure 14 Expected Crash Rate, Access Density, and Crashes Potentially Related to Access Figure 15 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions Figure 16 Lane Configurations (Existing vs. 2+1) Figure 17 Comparison of Expected Crash Rates (Existing vs. 2+1 Configuration) Figure 18 Existing Operations Comparison - Existing vs. 2+1 Configuration Figure 19 Year 2036 Operations Comparison - Existing vs. 2+1 Configuration Figure 20 Comparison of Expected Crash Rates (Existing vs. Consistent 8' Shoulders) Figure 21 Comparison of Expected Crash Rates (Existing vs. Edgeline Rumble Strips) Figure 22 Comparison of Expected Crash Rates (Existing vs. Center Rumble Strips) Figure 23 Comparison of Expected Crash Rates (Existing vs. Improved RHR) Figure 24 Comparison of Expected Crash Rates (Existing vs. Access Management) Figure 25 Winter Weather Road Surface Crashes, Animal Crashes, and Potential Sites to Consider Shade Reduction 45 Figure 26 Crash Frequency on US 20 Corridor with Potential Treatments Figure 27 Comparison of Expected Change in Crash Rates (2+1, 8' Shoulders, and Improved RHR).. 49 Figure 28 Comparison of Expected Change in Crash Rates (Rumble Strips and Access Management)50 iv Kittelson & Associates, Inc.

6 Table of Contents Figure 29 Safety Performance by Crash Severity - Existing vs. Recommended Configuration Figure 30 Estimated Reduction in Crashes, 2+1 Configuration and 8' Shoulders Figure 31 Operational Performance - Existing vs. Recommended Configuration v Kittelson & Associates, Inc.

7 Table of Contents APPENDICES Appendix A Geometric, Traffic, and Crash Data by Segment Appendix B Crash Data Appendix C Weather Data Appendix D Comparison of 6 vs. 8 Shoulders Appendix E Example Treatment Locations vi Kittelson & Associates, Inc.

8 Section 1 Executive Summary

9 Executive Summary EXECUTIVE SUMMARY The US 20 corridor between Chester and the Montana state is approximately 53 miles long and serves multiple purposes that are of importance to the local, regional, and national economies. During the summertime, thousands of tourists use the corridor while traveling to and from Yellowstone National Park, the famous fly fishing destination of the Henrys Fork River, Harriman State Park, Henrys Lake State Park, Mesa Falls, and other recreation destinations. In the winter, the corridor serves as an alternate route to I-15 for commercial vehicle traffic traveling to and from I-90, the longest Interstate Highway in the country. In fact, according to ITD staff, US 20 from Idaho Falls to Montana carries the greatest amount of freight traffic of all non-interstate Highways in the state of Idaho. ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a mixture of atgrade and grade-separated intersections. However, north of Chester, US 20 is still a rural two-lane highway. From 2010 to 2014, there were over 430 reported crashes on this rural section of highway, resulting in an estimated economic cost of about $50 million. Further, summertime peak traffic is nearly four times that of wintertime traffic volumes, leading to traffic congestion that only needs to be mitigated for a couple months of the year. This report builds on the US 20 Corridor Plan: Ashton to Montana State Line to lay out a vision for US 20 that will reduce crashes and peak traffic congestion without incurring the expense and impacts of constructing a four-lane divided highway. This vision includes continuous alternating passing lanes in both directions (also called a 2+1 configuration, see Figure EX 2) and wider shoulders, as shown in Figure EX 1. Examples of sections of US 20 with passing lanes and shoulder are shown below. Frequent Passing Lanes in Alternating Directions and Wider Shoulders is the Recommended Long- Term Configuration 2 Kittelson & Associates, Inc.

10 Miles Lane Types (Existing) 2 lanes 3 lanes (Dsecending) 3 lanes (Ascending) 3 lanes (TWLT) 4 lanes Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 4 Lanes 8' Shoulders Recommended Configuration 2+1 Concept with Wider Shoulders Fremont County, Idaho Figure EX 1

11 Executive Summary Figure EX 2 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions When implemented, this configuration is expected to have two primary benefits: 1. Reduce crashes by approximately 25-30%, resulting in annual savings of $700,000 - $1.35 million per year in crash costs (see Figure EX 3). Total Crashes (Expected) PDO Crashes/Year (Expected) Fatal/Inury Crashes/Year (Expected) Total Crashes (Observed) PDO Crashes/Year (Observed) Existing Conditions Recommended Configuration Fatal/Inury Crashes/Year (Observed) Crashes/Year Figure EX 3 Safety Performance by Crash Severity - Existing vs. Recommended Configuration 2. Long long-term efficient movement of motor vehicle traffic, resulting in people spending about the same time following other vehicles 20 years from now, when traffic volumes are projected to be 60% to 100% higher than they are currently, as they do today (see Figure EX 4). 4 Kittelson & Associates, Inc.

12 Executive Summary Year Configuration Current Year Existing Configuration 0% 20% 40% 60% 80% % Time Spent Following Figure EX 4 Operational Performance - Existing vs. Recommended Configuration More information regarding existing and projected future conditions along US 20, the project alternatives considered, and the resulting recommendations is included within the body of the following report. 5 Kittelson & Associates, Inc.

13 Section 2 Introduction

14 Introduction INTRODUCTION The approximately 53 miles of the US 20 corridor between Chester and the Montana state line serves multiple purposes that are of importance to the local, regional, and national economies. During the summertime, thousands of tourists use the corridor while traveling to and from Yellowstone National Park, the famous fly fishing destination of the Henrys Fork River, Harriman State Park, Henrys Lake State Park, Mesa Falls, and other recreation destinations. In the winter, the corridor serves as an alternate route to I-15 for commercial vehicle traffic traveling to and from I-90, the longest Interstate Highway in the country. In fact, according to ITD staff, US 20 from Idaho Falls to Montana carries the greatest amount of freight traffic of all non-interstate Highways in Idaho (Reference 1). PROJECT PURPOSE AND BACKGROUND Recognizing the importance of US 20, the Idaho Transportation Department (ITD) is evaluating how to cost-effectively improve safety and provide for the long-term movement of people and goods along the corridor. ITD has previously rebuilt US 20 south of Chester as a four-lane divided highway with a mixture of at-grade and grade-separated intersections. However, north of Chester, US 20 is still a rural two-lane highway. Given that existing and projected traffic volumes are lower north of Chester, a fourlane roadway in this northern section may not be a cost-effective solution, while maintaining the existing two-lane rural section may not meet future needs. Therefore, this study evaluates several options for reducing crashes and providing for efficient long-term traffic flow that are likely to be less expensive than building a four-lane divided highway along this section of US 20 shown in Figure 1 (approximately mileposts 353 to ). This report summarizes the traffic safety and operations elements of the Corridor Study Tasks 3 and 4 of the US 20 North Safety Corridor Planning Process. This study updates and expands upon the traffic safety and operations evaluation conducted for the 2006 US 20 Corridor Plan: Ashton to Montana State Line (Reference 2) and identifies potential improvements for the corridor to be considered in the future Corridor Plan Tasks 5 and 6. The safety analysis completed for this report is data-driven, focusing on solutions with known, quantifiable benefits and using analysis procedures from the Highway Safety Manual (HSM, Reference 3) to the extent practical. DATA COLLECTION Data has been collected for this project in order to review the existing roadway characteristics, analyze crash data using the predictive method from the Highway Safety Manual, and analyze traffic operations along the corridor. All analyses conducted for this study are at a planning level and are not based on detailed field measurements. Most data used in these analyses has been taken from ITD s IPLAN website ( or provided by ITD District 6 or Headquarters staff. Data collected by KAI includes: 7 Kittelson & Associates, Inc.

15 Miles Lane Types 2 lanes 3 lanes (Decending) Study 3 lanes Corridor (Ascending) 3 lanes (TWLT) 4 lanes Lane Types 2 lanes 3 lanes (Decending) 3 lanes (Ascending) 3 lanes (TWLT) 4 lanes Roadway Grade 0-3% 3-6% >6% Study Area, Lane Types, and Grades Fremont County, Idaho Figure 1

16 Introduction Presence and length of passing lanes Roadway lighting Rumble strips Roadside hazard rating Horizontal curve length and radius ROADWAY SUMMARY This section of US 20 is generally a two-lane rural highway with paved shoulders varying in width from approximately 0 to 8 feet. Passing lanes are provided in certain locations, typically as climbing lanes on steep grades, as shown in Figure 1. There are about 13.4 miles of northbound passing lanes and 3.4 miles of southbound passing lanes, representing coverages of approximately 25% and 6% of the corridor, respectively. Center-turn lanes are provided in some areas with higher access densities, including through Ashton and commercial areas of Island Park. Figure 1 also shows the approximate roadway grades throughout the corridor. The southern end of the corridor (i.e., south of the Henrys Fork River at milepost through Ashton to Chester) travels through relatively level terrain. North of milepost, the highway climbs into the mountains where the terrain is generally rolling as it passes through the Henry s Fork and Island Park calderas. North of Henry s Lake the highway climbs again to the Montana border at the Continental Divide. OTHER ONGOING PROJECTS At the writing of this report, there are at least two other ongoing projects related to safety and traffic operations on this section of US 20: ITD District 6 Wildlife Study - This project is examining wildlife migration and vehicle crash patterns along the same segment of US 20, as well as on State Highway (SH) 87 and developing recommendations to mitigate animal crashes along the corridor. US 20, Jct SH 87 to Montana State Line (Targhee Pass Concept Study) This project is evaluating design options for US 20 from its intersection with SH 87 to the Montana state line. The early recommendation from a traffic study completed for this project is for an eastbound climbing lane on US 20 (Reference 4). ORGANIZATION OF THE REPORT The remainder of this report is organized as follows: Section 3 Safety and Operations Analysis Describes the existing roadway and crash trends and the existing and projected future traffic operations. 9 Kittelson & Associates, Inc.

17 Introduction Section 4 Project Alternatives Identifies and evaluates potential treatments that may reduce crashes and/or improve traffic operations. Section 5 Recommendations Presents the recommended long-term configuration of this section of US Kittelson & Associates, Inc.

18 Section 3 Safety and Operations Analysis

19 Average Daily Traffic Volume US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis SAFETY AND OPERATIONS ANALYSIS This section summarizes the safety and operations analysis along the study section of US 20. Included in this section are: An analysis of traffic operations along the corridor under existing and future-year 2036 conditions A review of historical crash data, including an analysis of the data using methods from the Highway Safety Manual TRAFFIC OPERATIONS The traffic operations evaluation identifies the level of improvements that will be needed to accommodate projected traffic growth on the corridor. Traffic operations were analyzed along US 20 using the two-lane highway analysis method from the Highway Capacity Manual 2010 (Reference 5). Level-of-service (LOS) for two-lane highways is primarily based on the need for and availability of passing opportunities (i.e., average travel speed and percent time spent following are the two performance measures for US 20). The availability of passing opportunities was estimated for this analysis using aerial imagery. Existing Operations Traffic volumes on US 20 are highly seasonal, as shown in Figure Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Figure 2 Year 2015 Traffic Volumes by Month (ATR #32 - Ashton) This analysis captures the summer recreation period by analyzing the 30th highest hour. Volumes representing the 30th highest hour were estimated from the year 2015 AADT volumes obtained from 12 Kittelson & Associates, Inc.

20 Safety and Operations Analysis IPLAN by using data from ITD s automatic traffic recorder (ATR) #32 (Ashton), which is located on US 20 at approximately milepost. The results of this analysis are shown in Figure 3, along with the location of existing passing lanes. Appendix A contains the volume data for each segment. Projected Year 2036 Operations Year 2036 traffic volume projections were provided by ITD staff. These daily volumes were converted to estimated future 30 th highest hour volumes using the same factors as in the existing conditions analysis. The results of this analysis are shown in Figure 3. Many segments that are projected to operate at LOS D or worse in the year 2036 lack passing lanes in one or both directions. Adding passing lanes to many of these segments improves operations in most cases to LOS B or C. These are the target levels of service for new arterial roadways in rural rolling and rural mountainous areas, respectively, in the current ITD Roadway Design Manual (Reference 6). Comparison to 2006 Study The preliminary operations results summarized previously are similar or worse than the results from the 2006 corridor study. This is likely due to two factors: 1. Traffic volumes have increased by about 30% on this section of US 20 since the previous study s analysis was completed. 2. The 2006 study used a lower volume than the 30th highest hour due to the seasonal nature of the roadway. The analysis shown in this memorandum uses the 30th highest hour. 13 Kittelson & Associates, Inc.

21 Miles Lane Types 2 lanes 3 lanes (Decending) 3 lanes (Ascending) 3 lanes (TWLT) 4 lanes Existing LOS (2015) B C D Projected Year 2036 LOS C D E Existing Lane Types and Existing and Projected Traffic Operations Fremont County, Idaho Figure 3

22 Safety and Operations Analysis CRASH ANALYSIS ITD provided crash data for the most recent five years for which data is available, , along US 20 and at select intersections. The crash data is summarized by segment in Appendix A and the raw crash data provided by ITD is included in Appendix B. Based on this data, the US 20 study corridor experienced an average crash rate of approximately 116 crashes per 100 million average vehicle miles traveled (AVMT) during this time period. This rate is approximately 35 percent higher than the average rate for rural roadways in Idaho, which includes both highways and local roads. It is also lower than the average rate in Idaho for US and State highways, but those averages include urban and multi-lane highways, which are not directly comparable to this corridor (Reference 7). In order to identify the most effective improvement strategies, the analysis of the US 20 crash data includes a review of existing crash data trends for the corridor, including at the selected intersections, and an analysis of crash rates using the Highway Safety Manual. Corridor-wide Crash Trends Corridor-wide crash trends with respect to severity, road surface condition, and crash type are summarized in the following sections. Severity Figure 4 summarizes crashes along the corridor by severity. Fatal Crashes Number of Crashes Injury Crashes PDO Crashes Figure 4 Crashes by Severity ( ) Just over one-quarter, approximately 27%, of all crashes on US 20 resulted in an injury or fatality. This percentage is generally similar to, though slightly lower than, the statewide average of approximately 35% injury and fatal crashes for rural roads (Reference 7). These crashes have a significant financial impact. Based on the economic cost of crashes contained in ITD s 2014 crash report (Reference 7), the estimated economic impact of all reported crashes along this section of US 20 from is approximately $50 million dollars. 15 Kittelson & Associates, Inc.

23 Year US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis Weather Road surface conditions can be a contributing factor to crashes, particularly in areas prone to winter weather. Slick road surfaces can result in higher crash rates than would be expected and weather-related crashes may be better mitigated by operational improvements (e.g., snowplowing, de-icing), as opposed to geometric improvements. Figure 5 summarizes crashes by reported road surface condition. Ice/Snow/Slush Number of Crashes Wet/Water Dry Figure 5 Crashes by Road Surface Condition ( ) Over half, approximately 55%, of all crashes are reported to have occurred when there was some type of winter weather roadway surface (i.e., ice, snow, or slush). Weather-related crashes can fluctuate based on changing weather conditions (e.g., a snowy year compared to a dry year) and based on changes in maintenance practices, which we understand ITD has done recently. Figure 6 shows the crashes by reported road surface condition for each study year Ice/Snow/Slush Wet/Water Dry Number of Crashes Figure 6 Annual Crashes by Road Surface Condition The number of crashes on winter weather road surfaces has decreased from over 70 crashes per year in 2010 and 2011 to fewer than 30 crashes per year in 2013 and The number of crashes occurring 16 Kittelson & Associates, Inc.

24 Year US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis on a dry roadway surface is more consistent. This number varies from a low of 28 crashes in 2010 to a high of 39 crashes in The variation in winter weather road surface crashes could potentially be the result of changes in ITD snow and ice removal practices implemented around 2012, yearly variations in weather patterns, and/or a combination of the two (or other unknown) factors. ITD provided data from the four road weather information system (RWIS) stations it maintains along the corridor: Fall River, Sheep Falls, Osborne Bridge, and Henrys Lake. These stations record information regarding weather and road surface conditions, including weather there is snow or ice present on the road and the grip level of the roadway. Henrys Lake Weather Station Only one station, Henrys Lake, has data regarding the condition of the road surface before The first complete year of road surface data at this station is Figure 7 summarizes the percentage of time that this RWIS station reported ice or snow on the road surface or a grip level of less than 0.6, which is ITD s threshold for whether a road is considered slick. Given that this data sample is limited to only four of five years and one of four stations along a corridor that is longer than 50 miles, it is difficult to draw any conclusions from this data. It is presented here for information only Ice/Snow Layer>0 Grip Level <= % 5% 10% 15% 20% Percentages of Analysis Periods Figure 7 Ice/Snow Conditions at Henrys Lake RWIS Station ( ) US 20, near Henrys Lake, had a grip level of less than 0.6 about 12-13% of the time during 2013 and 2014, compared to about 15-17% during 2011 and Winter weather related crashes were lowest in 2013 and 2014 when this station reported the lowest proportion of ice or snow covered roads. However, winter weather related crashes were lower in 2012 than 2011, even though this particular station reported ice or snow covered roadways a greater percentage of the time in 2012 than Appendix C contains the weather information. 17 Kittelson & Associates, Inc.

25 Type US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis ITD should consider additional analyses at other locations throughout the state to better understand the impacts its maintenance practices may be having on crashes during the winter. Crash Type Figure 8 summarizes crashes by type. Overturn Head-on/Sideswipe Fixed Object/Other off-road Animal Angle/Turning/Rear-end Other Number of Crashes Figure 8 Crashes by Type ( ) Overturn crashes are the most common reported crash type, with about 30% of all crashes being classified as such. These crashes may or may not involve a vehicle leaving the roadway. According to the crash data, about 90% of the overturn crashes involved someone leaving the roadway. Combined with fixed object and other off-roadway crashes, these single-vehicle roadway departure crashes make up nearly half of all crashes on the roadway and are a point of emphasis in ITD s 2013 Strategic Highway Safety Plan (SHSP, Reference 8). Other key findings from a review of this data include: Animal crashes make up nearly 20% of the reported crashes along the corridor (i.e., 81 crashes). The other types of lane-departure crashes, side-swipe and head-on crashes, account for just over 10% of reported crashes (i.e., 48 crashes). Crashes that are likely related to intersections or other accesses (i.e., angle, turning, and rear-end crashes) represent about 8% of reported crashes (i.e., 35 crashes). Most (i.e., 27 out of 49) other crashes were reported as jackknife crashes. 18 Kittelson & Associates, Inc.

26 Intersecting Road(s) US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis o The majority, (i.e., 24 out of 27), of the jackknife crashes occurred on reported ice, snow, or slush covered roadways Weather may be a contributing factor to the overturn crashes, as nearly all (i.e., 129 out of 131 crashes) are reported to have occurred on ice, snow, or slush covered roadways. o Fixed object and other roadway departure crashes still make up approximately onethird of all crashes on dry and wet roadways. Intersection Crash Trends Of the crashes on US 20, approximately 8 percent were located at intersections and other driveways. This doesn t include the crashes on the side streets. In order to evaluate the crash characteristics at intersections along the corridor, crash data was obtained and reviewed for the following intersections of US 20: State Highway (SH) 87 Sawtelle Peak Road Big Springs Loop Road Big Springs Loop Road (southern intersection) Yale-Kilgore Road Mesa Falls Scenic Byway SH 47 The number and severity of reported crashes at each intersection is summarized in Figure 9. SH 87 Sawtelle Peak-Big Springs Loop (N) Big Springs Loop (S) Yale-Kilgore Mesa Falls Scenic Byway PDO Crashes Injury Crashes Fatal Crashes SH Number of Crashes Figure 9 Intersection Crashes ( ) All of the intersections experienced less than or approximately one reported crash per year, making it difficult to discern any patterns at individual intersections. All of the crashes at the three most northern 19 Kittelson & Associates, Inc.

27 Safety and Operations Analysis intersections (i.e., SH 87, Sawtelle Peak Road, Big Springs Loop Road) are reported to have occurred on ice or snow-covered roads. The crashes at Yale-Kilgore Road and SH 47 are reported to have occurred on dry roads. No crashes were reported at the Mesa Falls Scenic Byway intersection. There was one fatal crash at SH 47 when an individual riding a motorcycle was struck by a person driving a car and thrown from his vehicle. According to the report, he was not wearing a helmet. Relative Highway Safety Performance The following section takes a closer look at the crash data by examining where on the corridor crashes are occurring. For the purposes of this analysis, the corridor has been divided into 49 relatively homogenous segments of varying lengths to allow for analysis according to the Highway Safety Manual s predictive method for rural two-lane, two-way roadways. Three measures are first examined to review the safety performance of the US 20 corridor: Observed Crash Rate This is the number of reported crashes per 100 million vehicle miles traveled on each segment. Expected Crash Rate This rate is calculated using the Highway Safety Manual s predictive method and represents the crash rate expected to occur based on the geometric and traffic characteristics of the roadway. It is calculated using national models calibrated to Idaho data (Reference 9) and the observed crash data. This rate accounts for the random variation that tends to occur in crashes, providing a more reliable estimate of the safety performance of a segment. Highway Safety Corridor Analysis (HSCA) Score The HSCA score provides greater weight to fatal and serious injury crashes than the above measures. It is calculated by ITD for the entire State highway system and the resulting scores are a relative measure of how each segment is performing compared to the remainder of the statewide system. The scores used in this analysis are taken from IPLAN for the year Figure 10 shows the performance of the US 20 corridor with respect to each of these measures. For the purposes of this analysis, the crash rate measures are shown in three categories with an equal number of segments in each category (i.e., a relative high/medium/low categorization). The HSCA scores are shown according to their ITD classification (i.e., they are relative to the statewide system and not just the US 20 corridor). Generally, the three measures are in approximate agreement with respect to the relative performance of each segment. There are some variations between the two crash rate measures as to the relative performance of certain segments; however these are differences of one category (e.g., a red segment in one measure may show up as yellow in another, but no red segments show up as green in the other). The segments shown in red in the expected crash rate portion of the figure are where we would expect the greatest potential for return on geometric related safety improvements. 20 Kittelson & Associates, Inc.

28 Miles Expected Crash Rate (Crashes/100 MVM) Observed Crash Rate (Crashes/100 MVM) HSCA Score High Medium Low Comparison of Crash Rates and HSCA Scores Along US 20 Fremont County, Idaho Figure 10

29 Safety and Operations Analysis Most of the corridor falls into the medium tier for its HSCA score. The two exceptions are the section through Ashton, which falls into the high tier, and the southern end of the corridor south of milepost, which falls into the low tier. Observed vs. Expected Crash Rates The observed and calculated expected crash rates vary by differing amounts, as shown in Figure 11. Differences in the two rates are most likely due to one of the following reasons: Temporal variations in the observed crash rate Crashes are random events and where they occur varies from one year to another. As a result, the observed crash rate for any given site is likely to be different depending on the years of crash data included. This can especially be an issue on a rural highway, such as US 20, with lower traffic volumes where slight changes in the number of reported crashes can result in large changes in the crash rate. The calculated expected crash rate overcomes this fluctuation in data by estimating the longterm average crash rate. Factors not fully captured in the HSM models influencing crashes The HSM model used for this study is based on data from several states and has been calibrated to Idaho statewide conditions. However, there are still localized conditions that could be resulting in variations from the expected crash rate. For the US 20 corridor, two factors that may be resulting in more crashes than expected include: o Winter weather crashes As previously noted, over half of the reported crashes took place on winter weather road surfaces. While the model has been calibrated to Idaho conditions, this was a statewide calibration effort, including highways in the drier and warmer parts of the state. o Animal crashes Animals were involved in about 20% of all crashes along the corridor and about 24% of all single-vehicle crashes. This is nearly twice as high as would be expected based on the HSM data (about 12% of all crashes are animal related) or Idaho statewide data (about 13% of single-vehicle crashes are animal related, Reference 6). 22 Kittelson & Associates, Inc.

30 Crash Rate (Crashes/100 MVM) US 20: Chester to Montana Safety Corridor Plan November 2016 Safety and Operations Analysis Observed Crash Rate Expected Crash Rate Milepost Figure 11 Expected vs. Observed Crash Rate Crash Location by Type/Contributing Factor Figure 12, Figure 13, and Figure 14 map out the density of crashes by type or contributing factor. The figures show a relative density range, with an equal number of roadway segments in each of the three categories (i.e., green segments represent the lowest third of densities, yellow segments represent the middle third, and red segments are the most dense third of segments). The observed crash frequency is included in these figures for comparison purposes. The crash types and contributing factors that are mapped out are: Winter weather road surface conditions Animal crashes Roadway departure crashes Sideswipe/head-on crashes Angle, turning, and rear-end crashes (i.e., crashes potentially related to accesses) Notable findings from this preliminary analysis include: There is some consistency between the locations with the greatest density of winter weather road surface crashes and the highest expected crash rates indicating that winter weather may be exacerbating existing roadway conditions that make these areas more likely to have crashes than other areas on the corridor. Roadway departure crashes are generally higher in areas with higher expected crash rates, which may indicate geometric conditions, such as narrow shoulders or curves are the primary contributing factor(s) to roadway departure crashes, in addition to weather. 23 Kittelson & Associates, Inc.

31 Miles Expected Crash Rate (Crashes/100 MVM) Winter Weather Road Surface Crashes Crashes/Mile Crashes/Mile Crashes/Mile Animal Related Crashes 0 Crashes/Mile Crashes/Mile Crashes/Mile Expected Crash Rate, Winter Weather Road Surface Crashes, and Animal Crashes Fremont County, Idaho Figure 12

32 Miles Expected Crash Rate (Crashes/100 MVM) Roadway Departure Crashes Crashes/Mile Crashes/Mile Crashes/Mile Sideswipe/Head-on Crashes 0.0 Crashes/Mile Crashes/Mile Crashes/Mile Expected Crash Rate and Lane Departure Crashes Fremont County, Idaho Figure 13

33 Miles Expected Crash Rate (Crashes/100 MVM) Access Density Accesses/Mile Accesses/Mile Accesses/Mile Angle, Turning, and Rear-End Crashes 0.0 Crashes/Mile Crashes/Mile Crashes/Mile Expected Crash Rate, Access Density, and Crashes Potentially Related to Access Fremont County, Idaho Figure 14

34 Safety and Operations Analysis Locations with a higher density of head-on and side swipe crashes are sometimes consistent with the areas with a higher expected crash rate, but not to the same extent that roadway departure crashes are. Access density and the density of angle, turning, and rear end crash types are generally correlated throughout the corridor, but not in all cases. This could be due to other access related factors, in addition to density (e.g., volumes, spacing, sight distance). Comparison to 2006 Study The results described above were compared to the findings from the 2006 corridor study. This study recommended access management, passing lanes, turn lanes, wildlife crossing studies/mitigation, and widened shoulders, in addition to specific intersection projects. These recommendations are generally consistent with the findings described above. There are some notable differences between the crash data reviewed for this analysis and the crash data included in the previous study: Potential intersection and access related crashes (i.e., rear-end, turning, and angle crashes) made up 25% of the crashes reviewed for the 2006 study, while they only make up about 8% of the crashes from 2010 to Conversely, fixed object, overturn, and other loss of control type crashes made about 37% of all crashes in the 2006 study, while they account for approximately 57% of all crashes from 2010 to The proportion of head-on and sideswipe crashes has also decreased from about 17% of all crashes to 11% of all crashes. The difference in the proportion of crash types could be due to random variations in crashes in general, weather, projects implemented since the 2006 corridor study, changes in how crashes are reported, other factors not listed here, or some combination of all of these factors. SUMMARY The following summarizes key observations regarding safety and operations on the US 20 corridor: The crash analysis found relatively consistent trends with respect to the observed crash rate, expected crash rate, and HSCA score. Weather is a significant contributing factor to crashes on the corridor, with over half of all crashes reportedly occurring on ice, snow, or slush covered roadway. Roadway departure crashes are the most common crashes on the corridor, indicating a potential to reduce crashes through countermeasures that lower the chance vehicles will leave the roadway. 27 Kittelson & Associates, Inc.

35 Safety and Operations Analysis The LOS is expected to be D or worse by the year 2036 on most of the corridor during the peak summer period. These findings are generally similar to the previous 2006 study; although the percentage of crashes occurring at intersections has decreased while the percentage of overturn and fixed object crashes have increased. 28 Kittelson & Associates, Inc.

36 Section 4 Project Alternatives

37 Project Alternatives PROJECT ALTERNATIVES Based on the analysis presented in the preceding section, several different potential countermeasures that to cost-effectively reduce crashes and/or improve traffic operations were identified and reviewed. This section summarizes the treatments considered and the results of an analysis of their effectiveness. PROJECT ALTERNATIVES CONSIDERED The improvement alternatives considered treatments to add capacity and countermeasures to reduce crashes. Sources of potential countermeasures include the Federal Highway Administration s Proven Safety Countermeasures (Reference 10), ITD s SHSP, the Highway Safety Manual, and our experience from previous safety and operations related work. We have identified the following improvements and countermeasures that could potentially be deployed along the corridor systematically or at select locations: Capacity and Safety Improvements/Countermeasures o Configuration (i.e., alternating passing lanes) o Wider shoulders o Access management Safety Countermeasures o Edgeline rumble strips o Centerline rumble strips o Safety Edge o Enhancing clear zones Each of the treatments listed above was evaluated with respect to its expected effectiveness at reducing crashes along the corridor. The addition of passing lanes was also reviewed from an operations perspective. This analysis is described in the following sections Configuration Providing passing lanes in alternating directions along two-lane highways can be a cost-effective means to reduce crashes and improve traffic operations without incurring the expense of constructing a complete four-lane facility. This pattern of alternating passing lanes is often referred to as a configuration, or, in Texas, a Super 2 configuration (Reference 11). Figure 15 provides a conceptual illustration of the 2+1 configuration. Today, travelers on US 20 infrequently encounter passing lanes. As previously discussed, this is expected to contribute to increased delay along the corridor as traffic volumes grow. With the 2+1 configuration, passing Existing Passing Lane on US 20 South of SH Kittelson & Associates, Inc.

38 Project Alternatives lanes are provided in alternating directions as frequently as practical along the corridor. Figure 15 Conceptual Illustration of 2+1 Concept Compared to Existing Conditions Currently, one section of alternating passing lanes exists on US 20 from approximately milepost to, where there is a northbound passing lane from about milepost to milepost and then a southbound passing lane from about milepost to milepost. Figure 16 illustrates a potential configuration for how a 2+1 configuration might look on US 20. The concept, as shown, includes about 26 new miles of passing lanes, which is about half the length of the corridor. To develop this concept, passing lanes are proposed to be added to the existing 2-lane sections using the following criteria: Generally, the passing lanes are alternated from one side to the other side every mile (including transition, so the lanes will be a bit shorter than a mile each). o This length is based on reviewing previous research on the 2+1 concept in the US and Europe, and best practices for passing lane design (References 11-14). Exceptions to the mile spacing occur as follows: o Transitions are avoided on curves o The third lane will be a turn lane at major intersections where there is not already a turn lane o A third lane is maintained on the uphill side of any grade of 3% or greater Further engineering analysis would be needed to determine the exact location and lengths of each new passing lane. Figure 17 shows the expected reduction in crashes as a result of implementing this proposed configuration. Based on research summarized in the HSM, the 2+1 configuration is expected to reduce crashes by approximately 25% wherever new passing lanes are added, which is shown on the figure as about half of the corridor. Another benefit of providing regular passing opportunities is improved traffic flow. Figure 18 and Figure 19 show how traffic operations would be improved by implementing the 2+1 concept under both existing and projected year 2036 conditions. Notably, the level-of-service (LOS) in the year 2036 can be 31 Kittelson & Associates, Inc.

39 Miles Lane Types (Existing) 2 lanes 3 lanes (Descending) 3 lanes (Ascending) 3 lanes (TWLT) 4 lanes Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 4 Lanes Lane Configurations (Existing vs. 2+1) Fremont County, Idaho Figure 16

40 Miles 354 Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 354 Expected Crash Rate (Crashes/100 MVM) Change in Expected Crash Rate with 2+1 0% 4 Lanes % Comparison of Expected Crash Rates (Existing vs. 2+1 Configuration) Fremont County, Idaho Figure 17

41 Miles 354 Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 354 Existing Year LOS with Existing Lanes C 354 Existing Year LOS with 2+1 Configuration B C 4 Lanes D D Existing Operations Comparison - Existing vs. 2+1 Configuration Fremont County, Idaho Figure 18

42 Miles 354 Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 354 Year 2036 LOS with Existing Lanes C D 354 Year 2036 LOS with 2+1 Configuration B C D 4 Lanes E E Year 2036 Operations Comparison - Existing vs. 2+1 Configuration Fremont County, Idaho Figure 19

43 Project Alternatives expected to be C or better along much of the corridor, with a few sections of LOS D, and one segment of LOS E, which is not affected by the 2+1 configuration. Whereas, without the additional passing lanes, the LOS is expected to be D or E along most of the corridor by Wider Shoulders Wider shoulders have been proven to reduce crashes on rural two-lane highways. This effect has been quantified for shoulders up to 8 feet in width in the Highway Safety Manual. Shoulder widths on the corridor currently vary from 0 feet to 8 feet. Figure 20 summarizes where shoulders on US 20 could potentially be widened to 8 feet and what the expected change in crashes would be if this were to occur. Nearly 40 miles of the corridor could benefit from shoulders being widened to 8 feet. The expected crash reduction benefit of widening shoulders depends on Existing 8 Shoulder on US 20 South of Ashton the current width of the existing shoulders. On the US 20 corridor, based on the crash modification factors in the HSM, the expected safety benefit of 8-feet wide shoulders ranges from approximately 13% to 33%, with the greater benefit expected where existing shoulders are the most narrow. ITD s current standard shoulder width is 6 feet (Reference 5). Widening shoulders that are narrower than this standard to 6 feet would also have a benefit, though it would not be as great as widening to 8 feet. A comparison of widening shoulders to 6 feet versus 8 feet is included in Appendix D. 36 Kittelson & Associates, Inc.

44 Miles 354 Existing Shoulder Width 8 Feet 6 Feet 4-5 Feet 2-3 Feet 354 Expected Crash Rate (Crashes/100 MVM) Change in Expected Crash Rate 0% 1-7% 8-14% 15-21% 22-28% 29-35% Comparison of Expected Crash Rates (Existing vs. Consistent 8' Shoulders) Fremont County, Idaho Figure 20

45 Project Alternatives Edgeline Rumble Strips Rumble strips are one of FHWA s Proven Safety Countermeasures that the agency is encouraging jurisdictions to implement. While implementing edgeline rumble strips on a systematic basis can be a cost-effective means to reduce run-off-the-road crashes, there are considerations that need to be accounted for: Proximity to residences and lodging The noise created by a vehicle running over a rumble strip can be heard from a distance and may disturb Existing Edgeline Rumble Strips on US 20 South of Ashton surrounding residents. Our understanding is that ITD s current guidance is to not install rumble strips on highways when they travel through areas with residential uses. Impacts to people bicycling Rumble strips can also create a nuisance for people bicycling on the shoulder. Providing wide shoulders (i.e., 6-8 wide) anywhere rumble strips are installed can help avoid these conflicts. Minimum shoulder width ITD s standard drawings (Reference 15) note that rumble strips should be installed only when the width of the shoulder is 4 or greater. For shoulder widths of at least 2, but less than 4, rumble stripes, which are only 6 wide and include the edgeline striping, may be installed. Figure 21 illustrates candidate locations for edgeline rumble strips, taking into account the above considerations, as well as the expected crash reduction benefit of providing them at these locations. There are currently about 9 miles of edgeline rumble strips on US 20 and the figure includes approximately 28 additional miles of rumble strips. The expected crash reduction benefit of edgeline rumble strips is calculated using the crash modification factor (CMF) contained in NCHRP Report 641 Guidance for the Design and Application of Shoulder and Centerline Rumble Strips (Reference 16). This CMF calculates a reduction in single vehicle run-off-the-road crashes, based on the observed frequency of these crashes, or if there is no observed history, the expected proportion based on data contained in the HSM. Based on these calculations, the expected safety benefit of edgeline rumble strips is a reduction in crashes of about 3% to 15% wherever they are installed. 38 Kittelson & Associates, Inc.

46 Miles Existing Edgeline Rumble Strips Potential Edgeline Rumble Strips Not a Candidate Site Expected Crash Rate (Crashes/100 MVM) Change in Expected Crash Rate 0% 1-7% 8-14% 15-21% Comparison of Expected Crash Rates (Existing vs. Edgeline Rumble Strips) Fremont County, Idaho Figure 21

47 Project Alternatives Centerline Rumble Strips Centerline rumble strips are deployed primarily to reduce crossover type crashes, such as head-on collisions and run-off-the-road left crashes. Similar to edgeline rumble strips, the potential noise impacts on surrounding development should be considered before selecting a location to install them. ITD also recommends that centerline rumble strips should not be installed when the combined lane and shoulder width is less than 12 or where two-way left-turn lanes are present (Reference 5). Figure 22 illustrates potential candidate locations along the corridor for centerline rumble strips, taking into account these considerations. It includes approximately 46 miles of potential center rumble strips. The figure also summarizes the expected crash reduction benefit of providing them at these locations, which is about a 9% reduction in all crashes based on the CMF in NCHRP Report 461 (Reference 16). Center Rumble Strips on SH 55 North of Banks Image Source: Google Streetview Enhancing Clear Zones Removing trees and other fixed objects from the roadside can provide additional clear zones for vehicles that leave the roadway. Removing roadside trees also has the additional benefits of providing for more sunlight on the roadway during winter, which can result in faster snow/ice melt, and providing a greater viewing area for seeing wild animals that may enter the roadway. Figure 23 shows the locations along the US 20 corridor where the immediate clear zones could potentially be improved and the expected crash reduction benefit of improving them, based on the expected decrease in the roadside hazard rating described in the Highway Safety Manual. Previously Enhanced Clear Zone on US 20 South of Harriman State Park Access Management Access points introduce turning movement conflicts to the highway. Reducing the number of accesses and/or restricting certain movements at specific locations can reduce access-related crashes. Any type of potential access modification needs to be considered within the context of how it may affect adjacent development served by the access and the implications of focusing more traffic at other intersections and driveways. The 2006 corridor study recommended access modifications in a few specific locations. Figure 24 illustrates these locations and the expected crash reduction benefit associated with those access modifications. 40 Kittelson & Associates, Inc.

48 Miles Potential Center Rumble Strips Not a Candidate Site Expected Crash Rate (Crashes/100 MVM) Expected Change in Crashes 0% 1-7% 8-14% Comparison of Expected Crash Rates (Existing vs. Center Rumble Strips) Fremont County, Idaho Figure 22

49 Miles Roadside Hazard Rating (RHR) Change No Change in RHR Improve RHR Expected Crash Rate (Crashes/100 MVM) Change in Expected Crash Rate 0% 1-7% 8-15% Comparison of Expected Crash Rates (Existing vs.improved RHR) Fremont County, Idaho Figure 23

50 Miles No Access Management Potential Access Management Expected Crash Rate (Crashes/100 MVM) Change in Expected Crash Rate 0% 1-7% 8-15% Comparison of Expected Crash Rates (Existing vs.access Management) Fremont County, Idaho Figure 24

51 Project Alternatives Other Considerations Other treatments that were considered as part of this study or by one of the ongoing projects previously referenced include: Safety Edge Roadside tree clearing Animal crash reduction strategies These treatments are discussed below. Safety Edge Safety Edge is a tool that is used when paving the edge of a roadway. It provides an approximately 30- degree tapered angle at the end of the road and helps reduce run-off-the-road crashes. Safety Edge is also one of FHWA s Proven Safety Countermeasures. This treatment could potentially be applied to most sections of US 20 without guardrail. The expected reduction in crashes wherever this treatment is installed is about 6% (Reference 17). Roadside Tree Clearing The benefits of removing trees immediately adjacent to the road to provide adequate clear zones were previously discussed in the Enhancing Clear Zones section above. However, there may also be benefits to removing trees further out from the highway in order to provide: More sun on the roadway during the winter to aid in snow and ice melting Greater viewing area of wildlife approaching the road For the above reasons, ITD previously removed all trees within approximately 100 of the centerline of US 20 from approximately milepost to milepost. According to a solar model run by ITD staff, this tree removal project should have provided up to 4 hours of additional direct sunlight in the winter. Figure 25 illustrates other locations that may be candidates for similar treatment. These locations were identified based on a survey of existing tree stands within 100 of the highway using aerial imagery. Not all of these locations were previously identified for enhanced clear zones because the trees may be located on hillsides adjacent to US 20 and/or behind guardrail in several locations. Additional modeling would need to be conducted to identify how much additional sunlight could be gained at these locations. ITD has already completed this analysis for Targhee Pass (i.e., approximately milepost to milepost ). Priority areas for further analysis would include those areas where both winter weather and animal crashes are highest, as also shown on Figure 25 (i.e., mileposts to, to, and to ). 44 Kittelson & Associates, Inc.

52 Miles Animal Related Crashes 0 Crashes/Mile Crashes/Mile Crashes/Mile Winter Weather Road Surface Crashes Crashes/Mile Crashes/Mile Crashes/Mile Potential Shade Reduction Site Not a Candidate Site Winter Weather Road Surface Crashes, Animal Crashes and Potential Sites to Consider Shade Reduction Fremont County, Idaho Figure 25

53 Project Alternatives Animal Crash Reduction Strategies The ongoing ITD District 6 Wildlife Study is developing recommendations for treatments along seven different segments of US 20. Expected benefits of the treatments are also being calculated as part of this project. Draft recommendations from this project include a number of strategies, including wildlife under/over-passes, wildlife fencing, warning systems, lower speed limits, and sight distance improvements. 46 Kittelson & Associates, Inc.

54 Section 5 Recommendations

55 Recommendations RECOMMENDATIONS This section provides a comparison of the project alternatives reviewed in the previous section and summarizes the recommended long-term configuration of this section of US 20 and the expected benefits of this configuration. COMPARATIVE SUMMARY OF ALTERNATIVE TREATMENTS Figure 26 provides a summary of the overall expected change in crashes with each of the proposed treatments and Figure 27 and Figure 28 summarize the expected change in the crashes resulting from each of the proposed treatments along the corridor. Based on Expected Crashes Based on Observed Crashes Center Rumble Strips Edgeline Rumble Strips 8' Shoulders 2+1 Configuration Existing Conditions Crashes/Year Figure 26 Crash Frequency on US 20 Corridor with Potential Treatments Both the calculated expected crash frequency and the observed crash frequency from the crash data reviewed for this study are shown in Figure 26. As was noted before, the expected crash frequency provides, in theory, a more reliable estimate of the long-term average crash frequency. At the same time, there may be factors on this corridor that are influencing crashes that are not accounted for in the HSM s models (e.g., weather, animal migration patterns). Therefore estimates based on both measures are included in order to show the likely range of crash frequencies with each treatment. As shown in the figures, the 2+1 configuration and widening shoulders to a uniform 8 width are expected to provide the greatest reductions in crashes. Further, the 2+1 configuration is expected to provide for long-term traffic operations, without the expense of constructing a four-lane highway, as was previously shown in Figure Kittelson & Associates, Inc.

56 Configuration Expected Change in Crash Rate with 2+1 0% 22-28% 354 Widening to 8' Shoulders Expected Change in Crash Rate 0% 1-7% 8-14% 15-21% 22-28% 29-35% 354 Roadside Hazard Rating Improvement Expected Change in Crash Rate 0% 1-7% 8-15% Comparison of Expected Change in Crash Rates (2+1, 8' Shoulders, and Improved RHR) Fremont County, Idaho Figure 27

57 Edgeline Rumble Strips Expected Change in Crash Rate 0% 1-7% 8-14% 15-21% Centerline Rumble Strips Expected Change in Crash Rate 0% 1-7% 8-14% 15-21% Access Management Expected Change in Crash Rate 0% 1-7% 8-15% Comparison of Expected Change in Crash Rates (Rumble Strips and Access Management) Fremont County, Idaho Figure 28

58 Recommendations RECOMMENDED LONG-TERM CONFIGURATION OF US 20 Given the above findings, our recommendation is that the 2+1 configuration with 8 shoulders should be adopted as the long-term vision for the US 20 corridor between Chester and the Montana State line. Additionally, other less significant treatments, such as the other alternatives evaluated here (i.e., rumble strips, Safety Edge, enhancing clear zones, and access management), should still also be considered in a case-by-case basis as the roadway is reconstructed. These treatments can often be implemented at a low-cost as part of another project and are not dependent on the ultimate configuration of the highway being built. Figure 30 illustrates where passing lanes could potentially be added and shoulders widened to 8 along the US 20 corridor, as noted in the previous section. Appendix E contains example photos of areas recommended treatment. Expected Benefits of Recommended Configuration The recommended configuration provides both safety and operational benefits, which are described in the following sections. Safety Benefits Figure 30 also summarizes the expected reduction in crashes along the corridor, while Figure 29 summarizes the expected safety performance of the recommended configuration compared to existing conditions for all crashes, as well as crashes by severity. This summary is provided based on applying the CMFs for the treatments to both the calculated expected crash frequency and the observed from historical data crash frequency. Total Crashes (Expected) PDO Crashes/Year (Expected) Fatal/Inury Crashes/Year Total Crashes (Observed) PDO Crashes/Year (Observed) Existing Conditions Recommended Configuration Fatal/Inury Crashes/Year Crashes/Year Figure 29 Safety Performance by Crash Severity - Existing vs. Recommended Configuration In total, the recommended configuration is expected to reduce all crashes on the corridor by 25-30%, fatal/injury crashes by about 20-25%, and property damage only (PDO) crashes by 25-30%. This results in an economic benefit of approximately $700,000 to $1,350,000 per year in crash cost savings, or $14 51 Kittelson & Associates, Inc.

59 Miles Lane Types (2+1 Concept) 2 Lanes 3 Lanes (Descending) - Existing 3 Lanes (Descending) - New 3 Lanes (Ascending) - Existing 3 Lanes (Ascending) - New 3 Lanes (TWLT) 4 Lanes 8' Shoulders Estimated Change in Crash Rate 0% 8-14% 15-21% 22-28% 29-35% 36-43% Estimated Reduction in Crashes 2+1 Configuration and 8' Shoulders Fremont County, Idaho Figure 30

60 Recommendations million to $27 million over a 20-year design life, depending on whether the expected or observed crash frequency is used as the basis. Operational Benefits Providing frequent and regular passing opportunities will improve traffic flow on the corridor by reducing the amount of time people spend following slower vehicles. Figure 18 and Figure 19 previously summarized the expected level-of-service of the corridor with the 2+1 configuration under existing and projected year 2036 conditions. Figure 31 summarizes the overall operational performance of the recommended configuration compared to the existing conditions. Year Configuration Current Year Existing Configuration 0% 20% 40% 60% 80% % Time Spent Following Figure 31 Operational Performance - Existing vs. Recommended Configuration As previously noted, the 2+1 configuration is expected to provide for a LOS of C or better along much of the corridor in the year It is also expected to reduce the percentage of time that people spend following from an average of 73% in the year 2036 to 63%, during peak conditions in the peak direction. The percent time spent following will be lower in the off-peak direction and during most of the year. Next Steps The recommended configuration requires widening the existing highway as little as 2 feet (i.e., widening the shoulder from 6 to 8 feet) and by as much as 16 feet (i.e., adding a 12-foot passing lane and widening the shoulder by 4 feet). An engineering evaluation of the level of effort that would be required to perform this widening was not completed for this study. Further engineering analysis will be needed to determine the exact location and lengths of each new passing lane, as well as the level of effort that will be required to widen the highway to accommodate the additional passing lanes and shoulder widths. This subsequent analysis should estimate the costs of implementing the concept so that a benefit-cost ratio can be calculated to verify the cost-effectiveness of the proposed projects. 53 Kittelson & Associates, Inc.

61 Section 6 References

62 References REFERENCES 1. correspondence from Jeff Marker, Idaho Transportation Department. August Idaho Transportation Department. US 20 Corridor Plan: Ashton to Montana State Line. Prepared by HDR Engineering. July American Association of State Highway and Transportation Officials. Highway Safety Manual, 1st Edition Idaho Transportation Department. Preliminary Traffic Assessment for US 20, JCT SH 87 to Montana St Line, Targhee Pass Transportation Research Board. Highway Capacity Manual Idaho Transportation Department. Roadway Design Manual. August Idaho Transportation Department. Idaho Traffic Crashes Idaho Transportation Department. Strategic Highway Safety Plan Update. April Abdel-Rahim, A. and M. C. Sipple. Calibrating the Highway Safety Manual Crash Prediction Models for Idaho s Highways. Idaho Transportation Department, FHWA-ID December Federal Highway Safety Administration. Proven Safety Countermeasures. Accessed June M. D. Woolridge, et al. Design Guidelines for Passing Lanes on Two-Lane Roadways (Super 2). Prepared for Texas Department of Transportation. September National Cooperative Highway Research Program. Application of European 2+1 Roadway Designs. Research Results Digest, No April American Association of State Highway and Transportation Officials. A Policy on Geometric Design of Highways and Streets, 6th Edition J. L. Gattis, R. Bhave, and L. K. Duncan. Alternating Passing Lane Lengths. Transportation Research Record: Journal of the Transportation Research Board, No Idaho Transportation Department. Shoulder Rumble Strips and Rumble Stripes, Standard Drawing. November Kittelson & Associates, Inc.

63 References 16. National Cooperative Highway Research Program. Report 641 Guidance for the Design and Application of Shoulder and Centerline Rumble Strips Federal Highway Administration. Safety Edge. Accessed September Kittelson & Associates, Inc.

64 Appendix A Geometric, Traffic, and Crash Data by Segment

65 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Con.RightLane Con.LeftLane Rightlanes Leftlanes Passing_Lane Not Present Not Present Not Present Not Present Not Present Not Present Not Present Not Present Not Present Not Present Not Present Present (1 lane) Present (1 lane) Present (1 lane) Present (1 lane) Present (2 lanes) Not Present Not Present Not Present Not Present Not Present Not Present Present (1 lane) Not Present Not Present Not Present Present (1 lane) Not Present Not Present Not Present Present (1 lane) Not Present Not Present Not Present Not Present Present (1 lane) Not Present Not Present Not Present Present (1 lane) Present (1 lane) Present (1 lane) Present (1 lane) Not Present Not Present Not Present Not Present Not Present Not Present

66 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP RightLength LeftLength Median LaneWidth ShldWidth ShldType MedWidth None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 TWLT 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved 0 None 12 8 Paved None 12 4 Paved None 12 4 Paved None 12 4 Paved None 12 4 Paved None 12 4 Paved 0 None 12 4 Paved 0 None 12 6 Paved 0 None 12 6 Paved 0 None 12 6 Paved 0 None 12 6 Paved 0 None 12 6 Paved None 12 2 Gravel 0 None 12 2 Gravel 0 None 12 6 Paved 0 None 12 6 Paved None 12 2 Paved 0 TWLT 12 3 Paved 0 TWLT 12 3 Paved 0 TWLT 12 3 Paved 0 2 None 12 3 Paved 0 None 12 8 Paved 0 TWLT 12 8 Paved 0 None 12 8 Paved 0 TWLT 12 8 Paved None 12 2 Paved None 12 6 Paved 0 TWLT 12 6 Paved 0 None 12 6 Paved 0 None 12 5 Paved None 12 5 Paved 0 None 12 5 Paved None 12 5 Paved 0 TWLT 12 5 Paved 0 TWLT 12 5 Paved 0 None 12 5 Paved 0 None 12 5 Paved 0 None 12 5 Paved 0 None 12 5 Paved 0

67 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Lighting AutoSpdEnf AADT2015 AADT2040 Capacity LOS2015 LOS2036 Not Present No , D E Not Present No , D E Not Present No , D E Not Present No , D E Not Present No , D E Not Present No , D E Not Present No , D E Present No , D E Not Present No , D E Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No 0 6, D E Not Present No 0 6, D E Not Present No 0 6, D E Not Present No 0 6, D E Not Present No 0 6, D E Not Present No 0 6, D E Not Present No 0 6, D E Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No , C D Not Present No 0 6, C C Not Present No 0 6, C C Not Present No 0 6, C C Not Present No 0 6, C C Not Present No 0 6, C C Not Present No 3 6, C C Not Present No 3 5, C C Not Present No 3 5, C C Not Present No 3 5, C C Not Present No , C C Not Present No , C C Not Present No , D D Not Present No , D D Not Present No , D D Not Present No , D D Not Present No , D D

68 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP LSpeedLimit RSpeedLimit Crash_Yrs Rear_End Animal Turning Head-on

69 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Oveturn Side Swipe Fixed Object Pedestrian Bicycle Other PDO Injury Fatal

70 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Fat_Inj Low_Light Wet_Snow_Ice Work_Zone Alcohol Crash_Total Crash_Rate

71 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Crash_FreqObs Crash_FreqExp Crash_RateExp PaveCond Grade_Asc Poor Poor Poor Poor Poor Poor Poor Poor Good Good Good Good Fair Fair Fair Fair Fair Good Good Good Good Good Poor Poor Good Good Fair Good Good Good Good Fair Fair Fair Fair Fair Good Good Good Good Good Good Good Good Good Good Good Good Good 0.00

72 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP Grade_Dec RumbleStrips EdgeRumbleStrips Hazard_Rating Barrier_Type 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None 0.00 No Yes 3 None No No 4 Guardrail No No 4 None No No 4 Guardrail No No 5 Guardrail 0.00 No No 5 Guardrail 0.00 No No 4 Guardrail 0.00 No No 2 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 2 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 3 None 0.00 No No 4 None 0.00 No No 2 None 0.00 No No 2 None 0.00 No No 2 None 0.00 No No 4 None 0.00 No No 2 None 0.00 No No 3 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None 0.00 No No 4 None No No 4 None No No 4 Guardrail No No 4 Guardrail 0.00 No No 4 Guardrail 0.00 No No 3 None

73 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP HorCurve_length HorCurve_Radius HorCurve_Elev Accesses Access_per_mi

74 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP HSCA OffRoad_mi LaneDep_mi Winter_Mi Animal_mi Fi_Mi

75 Appendix A - Geometric, Traffic, and Crash Data by Segment Route FromMP ToMP ComCrash ComCrash_mi AccCrash_mi

76 Appendix B Crash Data

77 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Pickup Going Straight Descending S Angle In Intersection Point 11 Power Unit None SUV/Crossover Other Descending W Angle In Intersection On Roadway Point 1 Power Unit Failed to Yield Van - 1 to 8 seats Turning Right Ascending E Side Swipe Same Nonjunction Point 7 Power Unit None Tractor - 2 Trailers Going Straight Ascending E Side Swipe Same Nonjunction On Roadway Point 1 Power Unit None Car Passing Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Improper Overtaking Car Going Straight Ascending E Animal - Domestic In Intersection On Roadway Point 3 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Turning Left Descending W Rear-End Nonjunction Point 6 Power Unit None SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Point 8 Power Unit None SUV/Crossover Going Straight Descending W Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Passing Ascending S Overturn Nonjunction Outside Right-Of-Way Top And Windows Power Unit Speed Too Fast For Conditions Car Passing Ascending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Inattention Pickup/Van/Panel/SUV Going Straight Ascending N Side Swipe Same Nonjunction Point 9 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 8 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 8 Power Unit None Van - 1 to 8 seats Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Drove Left of Center Bus - 16 or more seats Going Straight Ascending N Side Swipe Opposite Nonjunction Point 10 Power Unit Vision Obstruction Car Passing Ascending N Overturn Nonjunction On Roadway Top And Windows Power Unit Overcorrected Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction On Roadway Point 9 #1 Trailing Unit Other Car Turning Left Ascending N Side Swipe Same Nonjunction Right Shoulder Point 11 Power Unit Improper Turn Motor Home Going Straight Ascending N Side Swipe Same Nonjunction Point 3 #1 Trailing Unit None Car Negotiating Curve Ascending S Side Swipe Opposite Nonjunction On Roadway Point 8 Power Unit Drove Left of Center Pickup Negotiating Curve Ascending N Side Swipe Opposite Nonjunction Point 8 #1 Trailing Unit None SUV/Crossover Stopped in Traffic Descending S Side Swipe Same Nonjunction Point 5 Power Unit None Pickup Going Straight Descending S Side Swipe Same Nonjunction On Roadway Point 8 Power Unit Speed Too Fast For Conditions SUV/Crossover Slowing in Traffic Ascending N Rear-End Nonjunction Point 6 Power Unit None Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction On Roadway Point 1 Power Unit Following Too Close Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit Failed to Maintain Lane Tractor - 1 Trailer Going Straight Ascending N Side Swipe Opposite Nonjunction Point 7 Power Unit None Van - 1 to 8 seats Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending E Delineator Post Nonjunction Right Shoulder Point 11 Power Unit Failed to Maintain Lane Car Going Straight Ascending N Overturn Nonjunction Roadside or Sidewalk Top And Windows Power Unit Other Pickup Turning Left Descending E Angle Turning In Intersection On Roadway Point 8 Power Unit Failed to Obey Stop Sign Car Going Straight Descending SW Angle Turning In Intersection Point 11 Power Unit None Car Going Straight Ascending E Rear-End In Intersection On Roadway Point 12 Power Unit None Pickup Turning Left Ascending E Rear-End In Intersection Point 6 Power Unit None Pickup Going Straight Ascending S Side Swipe Opposite In Intersection On Roadway Point 11 Power Unit Speed Too Fast For Conditions Pickup Turning Left Ascending N Side Swipe Opposite In Intersection Point 8 Power Unit None Pickup Going Straight Ascending S Non-Contact Unit Nonjunction On Roadway No Impact Wheel Defect Pickup Going Straight Ascending N Other Object Not Fixed Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Ascending W Overturn Nonjunction Left Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued SUV/Crossover Going Straight Ascending S Embankment Nonjunction Left Shoulder Top And Windows Power Unit None Pickup Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit Following Too Close Pickup Going Straight Ascending N Rear-End Nonjunction Point 12 # 1 Trailing Unit None Tractor - 1 Trailer Negotiating Curve Ascending E Jackknifed In Intersection Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Negotiating Curve Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Slowing in Traffic Ascending N Side Swipe Same Nonjunction Point 4 Power Unit None Pickup/Van/Panel/SUV Negotiating Curve Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Inattention SUV/Crossover Negotiating Curve Descending NE Head-On Nonjunction Left Shoulder Point 12 Power Unit Other SUV/Crossover Avoiding Vehicle, Pedestrian, Pedalcycle Descending SW Head-On Nonjunction Point 12 Power Unit Sick SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit Asleep, Drowsy, Fatigued Pickup/Van/Panel/SUV Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions SUV/Crossover Slowing in Traffic Descending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Failed to Maintain Lane SUV/Crossover Going Straight Descending S Side Swipe Opposite Nonjunction Point 9 Power Unit None Pickup/Van/Panel/SUV Leaving Parking Lot/driveway/alley Ascending NE Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Failed to Yield Pickup/Van/Panel/SUV Leaving Parking Lot/driveway/alley Ascending E Side Swipe Opposite At Driveway/Alley/Parking Lot Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Building/Wall Driveway/Alley/Parking Lot Related Parking Lot Access Rd Point 7 Power Unit None Car Turning Left Descending E Angle Turning At Driveway/Alley/Parking Lot On Roadway Point 9 Power Unit Failed to Yield Truck With Trailer Going Straight Descending S Angle Turning At Driveway/Alley/Parking Lot Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending E Angle In Intersection Point 4 Power Unit Inattention Car Going Straight Ascending N Angle In Intersection On Roadway Point 12 Power Unit Distracted IN or ON Vehicle Car Going Straight Ascending N Head-On Turning Intersection Related Point 10 Power Unit None Pickup Turning Left Ascending S Head-On Turning Intersection Related On Roadway Point 12 Power Unit Inattention Car Going Straight Ascending N Angle In Intersection On Roadway Point 12 Power Unit Speed Too Fast For Conditions Motorcycle Going Straight Ascending E Angle In Intersection Point 3 Power Unit Failed to Yield Car Going Straight Ascending W Angle In Intersection On Roadway Point 11 Power Unit Failed to Obey Stop Sign Tractor - 1 Trailer Going Straight Ascending N Angle In Intersection Point 3 Power Unit None Pickup/Van/Panel/SUV Turning Left Ascending E Angle Turning In Intersection On Roadway Point 2 Power Unit Inattention Pickup/Van/Panel/SUV Going Straight Ascending N Jackknifed In Intersection Point 12 Power Unit None Pickup/Van/Panel/SUV Turning Left Ascending W Angle In Intersection Point 8 Power Unit Failed to Obey Signal Motor Home Going Straight Ascending N Angle In Intersection On Roadway Point 11 Power Unit None

78 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Pickup Going Straight Descending S Animal - Domestic Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit None SUV/Crossover Going Straight Descending S Other Object Not Fixed Nonjunction Off Roadway-Location Unknown Point 1 Power Unit Asleep, Drowsy, Fatigued Van - 1 to 8 seats Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Descending S Rear-End Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Side Swipe Opposite Nonjunction Point 1 Power Unit None Construction Equipment Going Straight Descending S Rear-End Nonjunction Point 7 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending W Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit Drove Left of Center Tractor - 1 Trailer Going Straight Ascending E Side Swipe Opposite Nonjunction Point 9 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Distracted IN or ON Vehicle Tractor - 2 Trailers Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Pickup Going Straight Descending S Concrete Traffic Barrier Nonjunction On Roadway Point 1 Power Unit Tire Defect Pickup Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Car Going Straight Descending W Embankment Intersection Related Off Roadway-Location Unknown Point 12 Power Unit Distracted IN or ON Vehicle Pickup Negotiating Curve Descending S Other Object Not Fixed Nonjunction Right Shoulder Undercarriage Power Unit Asleep, Drowsy, Fatigued Car Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Negotiating Curve Descending S Guardrail Face In Intersection Right Shoulder Point 12 Power Unit Alcohol Impaired Pickup Going Straight Ascending N Guardrail Face In Intersection Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions SUV/Crossover Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Bridge Rail Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Guardrail Face Nonjunction Right Shoulder Undercarriage Power Unit None Bobtail/Tractor - No Trailer Going Straight Descending S Other Fixed Object Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Ascending S Guardrail Face Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Side Swipe Opposite Nonjunction Point 11 Power Unit Distracted IN or ON Vehicle Pickup/Van/Panel/SUV Going Straight Ascending N Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit None Van - 1 to 8 seats Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Overcorrected Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 9 #2 Trailing Unit Truck Coupling, Trailer Hitch, Safety Chains Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 #1 Trailing Unit None Car Passing Ascending W Head-On Nonjunction On Roadway Point 11 Power Unit Alcohol Impaired Pickup/Van/Panel/SUV Passing Ascending E Head-On Nonjunction Point 11 Power Unit None Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit None Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit None Pickup/Van/Panel/SUV Negotiating Curve Ascending N Tree Nonjunction Outside Right-Of-Way Point 12 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending N Other Object Not Fixed Nonjunction On Roadway Point 8 Power Unit None Tractor - 1 Trailer Negotiating Curve Ascending N Cargo Loss/Shift Nonjunction On Roadway No Impact Other Car Negotiating Curve Ascending S Overturn Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending E Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Guardrail Face Nonjunction Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction On Roadway Point 5 Power Unit None Tractor - 1 Trailer Negotiating Curve Descending S Jackknifed Nonjunction On Roadway Point 10 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Negotiating Curve Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit None Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Inattention Pickup Negotiating Curve Descending S Jackknifed Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 2 Power Unit Speed Too Fast For Conditions Truck - 3+ Axle Going Straight Ascending N Side Swipe Opposite Nonjunction Point 12 Power Unit None Car Going Straight Ascending S Side Swipe Opposite Nonjunction Point 11 Power Unit None Car Going Straight Ascending N Side Swipe Opposite Nonjunction On Roadway Point 11 Power Unit None Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Car Going Straight Descending S Rear-End Nonjunction Point 6 Power Unit None Pickup Going Straight Descending S Rear-End Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit None Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 11 # 1 Trailing Unit Speed Too Fast For Conditions Tractor - 1 Trailer Avoiding Obstacle Descending S Other Object Not Fixed Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Negotiating Curve Ascending E Overturn Nonjunction Right Shoulder Point 3 Power Unit Brakes Pickup Going Straight Ascending N Separation of Units Nonjunction Right Shoulder Point 3 #1 Trailing Unit Speed Too Fast For Conditions Car Negotiating Curve Ascending S Embankment Nonjunction Left Shoulder Point 11 Power Unit Other Car Negotiating Curve Descending N Embankment Nonjunction Median Point 10 Power Unit Failed to Maintain Lane Car Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Cargo Loss/Shift Nonjunction Right Shoulder Point 5 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Rear-End In Intersection On Roadway Point 1 Power Unit Following Too Close Pickup Turning Right Ascending N Rear-End Intersection Related Point 5 Power Unit None Car Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction Point 6 Power Unit None Van - 1 to 8 seats Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions

79 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Tractor - 2 Trailers Going Straight Descending S Side Swipe Opposite Nonjunction Point 4 Power Unit None Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 8 Power Unit Animal(s) in Roadway Pickup Going Straight Ascending S Vehicle Equipment Failure (Blown Tire/Brake Failu Nonjunction On Roadway No Impact Wheel Defect Car Going Straight Ascending N Vehicle Equipment Failure (Blown Tire/Brake Failu Nonjunction On Roadway Point 9 Power Unit Wheel Defect Pickup/Van/Panel/SUV Passing Descending N Side Swipe Same Nonjunction On Roadway Point 8 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending N Side Swipe Same Nonjunction Point 8 Power Unit None SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued SUV/Crossover Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending W Tree Nonjunction Roadside or Sidewalk Point 12 Power Unit Failed to Maintain Lane SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit None SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Overturn Nonjunction Right Shoulder No Impact Light Defect Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Van - 1 to 8 seats Passing Ascending N Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending E Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit Asleep, Drowsy, Fatigued Tractor - 1 Trailer Going Straight Ascending N Animal - Domestic Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Going Straight Ascending N Side Swipe Same Nonjunction Left Shoulder No Impact Speed Too Fast For Conditions Car Going Straight Descending S Overturn Nonjunction Right Shoulder Point 12 Power Unit Inattention SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Truck - 3+ Axle Going Straight Descending N Overturn Nonjunction Left Shoulder Point 9 Power Unit Improper Turn SUV/Crossover Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Passing Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 1 Power Unit None Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Tree Nonjunction Right Shoulder Undercarriage Power Unit Failed to Maintain Lane Car Going Straight Descending S Embankment Nonjunction Right Shoulder Point 12 Power Unit None Tractor - 1 Trailer Going Straight Ascending E Overturn Nonjunction On Roadway Point 3 Power Unit Failed to Maintain Lane SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending N Other Object Not Fixed Nonjunction Left Shoulder Point 8 Power Unit Asleep, Drowsy, Fatigued Car Negotiating Curve Descending E Head-On Nonjunction On Roadway Point 12 Power Unit Vision Obstruction Truck - 2 Axle/6 Tires Negotiating Curve Descending W Head-On Nonjunction Point 12 Power Unit None Car Going Straight Ascending N Tree Nonjunction Right Shoulder Undercarriage Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending S Overturn Nonjunction Off Roadway-Location Unknown Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions Van/Bus - 9 to 15 seats Going Straight Ascending W Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Other Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Vehicle Equipment Failure (Blown Tire/Brake Failu Nonjunction Right Shoulder Point 4 #1 Trailing Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Car Passing Descending N Tree Nonjunction Left Shoulder Point 1 Power Unit None Tractor - 1 Trailer Going Straight Descending S Same Direction Turning Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Same Direction Turning Nonjunction Point 12 Power Unit None SUV/Crossover Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Ascending N Rear-End Nonjunction Right Shoulder Point 9 Power Unit None Tractor - 1 Trailer U-Turn Ascending N Rear-End Nonjunction Point 5 Power Unit Improper Turn Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Animal(s) in Roadway Car Negotiating Curve Ascending N Tree Intersection Related Roadside or Sidewalk Top And Windows Power Unit Asleep, Drowsy, Fatigued SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway SUV/Crossover Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 9 Power Unit Animal(s) in Roadway Pickup Going Straight Descending E Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Descending N Embankment Nonjunction Left Shoulder Point 11 Power Unit Inattention Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 1 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 6 Power Unit None Pickup Going Straight Descending S Animal - Domestic Nonjunction On Roadway Point 1 Power Unit None

80 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Tractor - 2 Trailers Going Straight Ascending S Other Nonjunction No Impact Wheel Defect Car Going Straight Ascending N Other Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Top # 1 Trailing Unit None SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Top And Windows Power Unit None Pickup Negotiating Curve Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 #1 Trailing Unit Animal(s) in Roadway Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 6 #1 Trailing Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Separation of Units Nonjunction Left Shoulder Point 12 #2 Trailing Unit None Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending W Rear-End Nonjunction Point 7 #1 Trailing Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Off Roadway-Location Unknown Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Head-On Nonjunction On Roadway Point 12 # 1 Trailing Unit None Truck With Trailer Going Straight Ascending N Head-On Nonjunction Point 12 Power Unit None Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Turning Right Descending S Side Swipe Same Nonjunction On Roadway Point 3 Power Unit Improper Lane Change Car Going Straight Descending S Side Swipe Same Nonjunction Point 11 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Parked Car Nonjunction Right Shoulder Point 12 Power Unit None SUV/Crossover Parked Vehicle Ascending N Parked Car Nonjunction Point 9 Power Unit None Pickup Passing Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Tree Nonjunction Right Shoulder Point 12 Power Unit Asleep, Drowsy, Fatigued SUV/Crossover Going Straight Ascending E Tree Nonjunction Roadside or Sidewalk Point 11 Power Unit None Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 10 Power Unit None Car Going Straight Descending N Other Non-Collision Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Car Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Embankment Nonjunction Roadside or Sidewalk Point 11 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued Pickup/Van/Panel/SUV Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Asleep, Drowsy, Fatigued Pickup Going Straight Ascending N Rear-End Turning In Intersection On Roadway Point 12 Power Unit Following Too Close SUV/Crossover Turning Right Ascending N Rear-End Turning In Intersection Point 12 # 1 Trailing Unit None Car Negotiating Curve Ascending N Side Swipe Same Nonjunction Point 11 Power Unit None Tractor - 1 Trailer Negotiating Curve Ascending N Side Swipe Same Nonjunction On Roadway Point 2 Power Unit Improper Lane Change Car Going Straight Ascending N Angle Turning In Intersection On Roadway Point 12 Power Unit None Pickup Turning Left Ascending W Angle Turning In Intersection Point 12 Power Unit Failed to Yield Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Left Shoulder Point 5 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 10 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 11 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Inattention Tractor - 2 Trailers Going Straight Ascending N Tree Nonjunction Right Shoulder Point 1 Power Unit Asleep, Drowsy, Fatigued Pickup/Van/Panel/SUV Passing Descending W Side Swipe Same Nonjunction On Roadway Point 12 Power Unit Improper Overtaking Truck - 3+ Axle Going Straight Descending W Side Swipe Same Nonjunction Point 5 Power Unit None Pickup Going Straight Descending N Embankment Nonjunction Left Shoulder Point 8 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Rear-End Nonjunction On Roadway Point 10 Power Unit None Tractor - 1 Trailer Going Straight Descending S Rear-End Nonjunction Point 5 Power Unit None Pickup Going Straight Descending S Cargo Loss/Shift Nonjunction On Roadway No Impact Wheel Defect Motorcycle Going Straight Descending W Vehicle Equipment Failure (Blown Tire/Brake Failu Nonjunction On Roadway Point 10 Power Unit Tire Defect Tractor - 1 Trailer Going Straight Ascending N Tree Nonjunction Off Roadway-Location Unknown Point 12 Power Unit Failed to Maintain Lane SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Head-On Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Head-On Nonjunction Point 10 Power Unit None Pickup Passing Descending S Side Swipe Same Nonjunction On Roadway Point 3 Power Unit None Pickup Turning Left Descending S Side Swipe Same Nonjunction Point 10 Power Unit None Van - 1 to 8 seats Going Straight Descending N Head-On Nonjunction Point 7 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Head-On Nonjunction On Roadway Point 5 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 4 Power Unit Failed to Maintain Lane Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 7 Power Unit Failed to Maintain Lane

81 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance SUV/Crossover Going Straight Descending S Side Swipe Opposite Nonjunction Point 8 Power Unit None Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 10 Power Unit None SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Pickup Going Straight Ascending N Jackknifed Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Tractor - 1 Trailer Negotiating Curve Ascending E Embankment Nonjunction Right Shoulder Point 1 Power Unit Vision Obstruction Car Turning Right Ascending W Angle Turning Intersection Related On Roadway Point 5 Power Unit Inattention Motorcycle Going Straight Ascending N Angle Turning Intersection Related On Roadway Point 1 Power Unit None SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 1 Power Unit None SUV/Crossover Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 8 Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Tree Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 9 Power Unit None Car Going Straight Descending N Head-On Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Head-On Nonjunction Point 10 Power Unit None Tractor - 1 Trailer Avoiding Vehicle, Pedestrian, Pedalcycle Ascending N Side Swipe Same Intersection Related On Roadway Point 11 Power Unit Other SUV/Crossover Turning Left Ascending N Side Swipe Same Intersection Related Point 5 Power Unit Failed to Yield Pickup Avoiding Vehicle, Pedestrian, Pedalcycle Ascending S Tree Nonjunction Right Shoulder No Impact Other Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Tractor - 2 Trailers Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Failed to Maintain Lane Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None SUV/Crossover Negotiating Curve Ascending E Overturn Nonjunction Right Shoulder Top And Windows Power Unit Other SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 10 Power Unit None Pickup Going Straight Ascending S Tree Nonjunction Left Shoulder Point 6 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending S Traffic Sign Support Nonjunction Left Shoulder Point 2 Power Unit Asleep, Drowsy, Fatigued SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Head-On Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Head-On Nonjunction Point 1 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup Turning Right Descending S Other Fixed Object Nonjunction Right Shoulder Point 11 Power Unit Failed to Maintain Lane Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Side Swipe Opposite Nonjunction Point 1 Power Unit None Tractor - 1 Trailer Going Straight Descending S Other Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Van - 1 to 8 seats Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction On Roadway Point 8 Power Unit None Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Going Straight Descending S Rear-End Intersection Related On Roadway Point 12 Power Unit Following Too Close Pickup Going Straight Descending S Rear-End Intersection Related Point 6 Power Unit Other Vehicle Defect Pickup Going Straight Ascending N Tree Nonjunction Right Shoulder Point 1 Power Unit Alcohol Impaired Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending S Other In Intersection On Roadway Point 12 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending S Other In Intersection Point 9 Power Unit Failed to Yield SUV/Crossover Going Straight Ascending N Overturn Nonjunction Right Shoulder Undercarriage Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Alcohol Impaired Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Pickup Going Straight Descending S Immersion Nonjunction Outside Right-Of-Way Point 12 Power Unit Asleep, Drowsy, Fatigued Pickup/Van/Panel/SUV Going Straight Descending S Embankment Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Side Swipe Opposite Nonjunction Point 10 Power Unit None Tractor - 1 Trailer Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 7 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Passing Descending S Side Swipe Same Nonjunction On Roadway No Impact Other Pickup/Van/Panel/SUV Going Straight Descending S Tree Nonjunction No Impact None Pickup Turning Left Descending E Head-On Turning In Intersection On Roadway Point 1 Power Unit None SUV/Crossover Going Straight Descending W Head-On Turning In Intersection Point 11 Power Unit Exceeded Posted Speed Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Inattention Pickup/Van/Panel/SUV Going Straight Descending N Embankment Nonjunction Right Shoulder Point 8 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Vision Obstruction Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit None Car Going Straight Ascending N Other Non-Collision Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Rear-End Turning Intersection Related On Roadway Point 10 Power Unit Speed Too Fast For Conditions Car Slowing in Traffic Ascending N Rear-End Turning Intersection Related Point 5 Power Unit None SUV/Crossover Going Straight Descending S Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Construction Equipment Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None SUV/Crossover Going Straight Descending S Overturn Nonjunction On Roadway Point 1 Power Unit Emotional â Depressed, Angry, Disturbed

82 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Pickup Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Overturn Nonjunction Point 11 Power Unit None Car Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions Pickup Stopped in Traffic Ascending N Side Swipe Same Nonjunction Point 4 #1 Trailing Unit Other Pickup Going Straight Ascending N Overturn Nonjunction Off Roadway-Location Unknown Point 1 Power Unit Asleep, Drowsy, Fatigued Pickup Going Straight Descending N Jackknifed Nonjunction On Roadway Point 9 Power Unit Other Van - 1 to 8 seats Merging Descending N Side Swipe Opposite Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Going Straight Descending S Side Swipe Opposite Nonjunction Point 11 Power Unit None Pickup Going Straight Ascending N Jackknifed Nonjunction On Roadway No Impact Speed Too Fast For Conditions Pickup Going Straight Descending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending N Embankment Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Side Swipe Opposite Nonjunction Point 1 Power Unit None Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions Tractor - 2 Trailers Going Straight Ascending N Jackknifed Nonjunction Left Shoulder Point 3 Power Unit Sick Tractor - 1 Trailer Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Previous Accident Pickup Going Straight Descending S Jackknifed Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Ascending S Embankment Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 1 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending S Embankment Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Car Going Straight Ascending S Bridge/Pier/Abutment Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Rear-End Turning Intersection Related On Roadway Point 11 Power Unit Inattention Pickup/Van/Panel/SUV Turning Left Ascending N Rear-End Turning Intersection Related Point 7 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending S Traffic Sign Support Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Tree Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Car Other Descending S Side Swipe Same Nonjunction Left Shoulder Point 11 Power Unit Speed Too Fast For Conditions Pickup Other Descending S Side Swipe Same Nonjunction Point 3 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending S Side Swipe Opposite Nonjunction On Roadway Point 10 Power Unit None Tractor - 1 Trailer Going Straight Ascending N Side Swipe Opposite Nonjunction Point 9 Power Unit None Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Negotiating Curve Ascending N Embankment Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit None Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending S Other Non-Collision Nonjunction Right Shoulder Point 5 Power Unit Asleep, Drowsy, Fatigued Car Going Straight Ascending N Other Non-Collision Nonjunction Right Shoulder No Impact None Tractor - 1 Trailer Going Straight Ascending N Other Fixed Object Nonjunction Right Shoulder Point 1 Power Unit Other SUV/Crossover Going Straight Ascending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Ascending W Head-On Nonjunction On Roadway Point 12 Power Unit Alcohol Impaired Tractor - 1 Trailer Going Straight Ascending E Head-On Nonjunction Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending S Separation of Units Nonjunction On Roadway Point 8 Power Unit Other Vehicle Defect Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Other Vehicle Defect SUV/Crossover Going Straight Ascending N Other Post, Pole or Support Nonjunction Outside Right-Of-Way Point 3 Power Unit Vision Obstruction Pickup/Van/Panel/SUV Going Straight Descending N Tree Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup/Van/Panel/SUV Going Straight Ascending S Separation of Units Nonjunction Left Shoulder Point 9 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending E Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Turning Right Descending S Other In Intersection On Roadway No Impact Failed to Yield Pickup/Van/Panel/SUV Going Straight Descending W Embankment In Intersection Roadside or Sidewalk Point 10 Power Unit None Pickup Turning Right Descending N Angle Turning Intersection Related On Roadway Point 12 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending W Angle Turning Nonjunction No Impact None Pickup Turning Right Ascending N Same Direction Turning Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Same Direction Turning Nonjunction Point 3 Power Unit Speed Too Fast For Conditions Pickup Turning Right Ascending N Angle Turning Intersection Related On Roadway Point 8 Power Unit None Pickup Stopped in Traffic Ascending W Angle Turning Nonjunction Point 7 Power Unit None Pickup Turning Left Descending S Side Swipe Same In Intersection On Roadway Point 9 Power Unit Improper Lane Change Car Going Straight Descending S Side Swipe Same In Intersection Point 1 Power Unit None Pickup Going Straight Ascending S Traffic Sign Support Nonjunction Left Shoulder Point 4 Power Unit Speed Too Fast For Conditions Snowmobile Going Straight Ascending W Angle In Intersection Point 10 Power Unit Failed to Obey Stop Sign Car Going Straight Ascending N Angle In Intersection On Roadway Point 1 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending S Tree Nonjunction On Roadway Point 6 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Tree Nonjunction Point 8 Power Unit None Tractor - 1 Trailer Going Straight Descending S Other Non-Collision Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions

83 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 6 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Overturn Nonjunction Left Shoulder Undercarriage Power Unit Asleep, Drowsy, Fatigued Pickup/Van/Panel/SUV Going Straight Ascending S Overturn Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Embankment Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Distracted IN or ON Vehicle Pickup/Van/Panel/SUV Going Straight Descending N Jackknifed Nonjunction Left Shoulder Point 5 Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Side Swipe Same Nonjunction On Roadway Point 4 Power Unit Inattention Pickup Turning Left Descending S Side Swipe Same Nonjunction Point 11 Power Unit None Motor Home Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit Animal(s) in Roadway Pickup Going Straight Ascending N Animal - Domestic Nonjunction On Roadway Point 9 Power Unit Animal(s) in Roadway Tractor - 1 Trailer Going Straight Descending S Rear-End Turning Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions Motor Home Turning Left Descending S Other Nonjunction On Roadway Point 5 Power Unit Failed to Yield SUV/Crossover Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Undercarriage Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 8 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Off Roadway-Location Unknown Point 2 Power Unit Speed Too Fast For Conditions Motorcycle Going Straight Ascending N Overturn Nonjunction Off Roadway-Location Unknown Top And Windows Power Unit Speed Too Fast For Conditions Motorcycle Going Straight Ascending N Overturn Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions SUV/Crossover Turning Right Ascending N Rear-End Nonjunction Point 6 #1 Trailing Unit None Car Going Straight Ascending N Rear-End Nonjunction On Roadway Point 6 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Failed to Maintain Lane Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup Going Straight Descending N Separation of Units Nonjunction Left Shoulder Point 4 #1 Trailing Unit Speed Too Fast For Conditions Pickup Going Straight Descending S Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Truck With Trailer Going Straight Ascending N Overturn Nonjunction Right Shoulder Top # 1 Trailing Unit Failed to Maintain Lane SUV/Crossover Going Straight Ascending N Overturn Nonjunction On Roadway Point 9 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Guardrail Face Nonjunction On Roadway Point 1 Power Unit None Pickup Going Straight Ascending N Side Swipe Same Nonjunction On Roadway Point 1 Power Unit Following Too Close Pickup Going Straight Ascending N Side Swipe Same Nonjunction Point 9 Power Unit None Pickup/Van/Panel/SUV Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 3 Power Unit Speed Too Fast For Conditions Car Going Straight Descending N Other Post, Pole or Support Nonjunction Left Shoulder Point 11 Power Unit Asleep, Drowsy, Fatigued Tractor - 1 Trailer Going Straight Descending N Side Swipe Opposite Nonjunction On Roadway Point 8 Power Unit None Tractor - 1 Trailer Going Straight Descending S Side Swipe Opposite Nonjunction Point 8 Power Unit None Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway Pickup Going Straight Ascending N Overturn Nonjunction On Roadway Point 8 Power Unit Vision Obstruction SUV/Crossover Going Straight Ascending S Head-On Nonjunction On Roadway Point 11 Power Unit Drove Left of Center Van - 1 to 8 seats Going Straight Ascending N Head-On Nonjunction Point 11 Power Unit None Car Going Straight Ascending N Angle Nonjunction On Roadway Point 6 Power Unit None Tractor - 1 Trailer Going Straight Ascending N Rear-End Nonjunction On Roadway Point 12 Power Unit None Car Passing Ascending N Side Swipe Same Nonjunction Point 1 Power Unit Improper Overtaking Pickup U-Turn Ascending N Side Swipe Same Nonjunction On Roadway Point 11 Power Unit Failed to Yield Pickup/Van/Panel/SUV Going Straight Descending S Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Overturn Nonjunction Off Roadway-Location Unknown Point 11 Power Unit None Van - 1 to 8 seats Going Straight Descending S Jackknifed Nonjunction On Roadway Undercarriage #1 Trailing Unit None Pickup/Van/Panel/SUV Going Straight Descending S Rear-End Nonjunction Right Shoulder Point 1 Power Unit Inattention Pickup/Van/Panel/SUV Other Descending S Rear-End Nonjunction On Roadway Point 7 Power Unit None Tractor - 1 Trailer Other Descending S Rear-End Nonjunction Point 6 Power Unit None Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Embankment Nonjunction Right Shoulder Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Truck With Trailer Going Straight Ascending S Jackknifed Nonjunction Off Roadway-Location Unknown Point 11 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Ascending N Jackknifed Nonjunction Left Shoulder Point 7 Power Unit Inattention SUV/Crossover Going Straight Descending N Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 9 Power Unit None SUV/Crossover Negotiating Curve Ascending N Overturn At Driveway/Alley/Parking Lot Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Negotiating Curve Ascending S Concrete Traffic Barrier Nonjunction Parking Lot Access Rd Point 1 Power Unit Sick Tractor - 1 Trailer Going Straight Ascending N Overturn Nonjunction Roadside or Sidewalk Point 1 Power Unit Vision Obstruction Car Going Straight Descending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending S Jackknifed Nonjunction On Roadway Point 7 Power Unit Speed Too Fast For Conditions Car Negotiating Curve Descending E Other Object Not Fixed Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Descending E Head-On Nonjunction On Roadway Point 12 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending W Head-On Nonjunction Point 12 Power Unit None SUV/Crossover Negotiating Curve Ascending N Utility/Light Support Nonjunction Left Shoulder Point 2 Power Unit Speed Too Fast For Conditions Pickup Turning Right Ascending N Overturn Nonjunction Left Shoulder Point 3 Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Top And Windows Power Unit Animal(s) in Roadway Tractor - 1 Trailer Slowing in Traffic Ascending S Embankment In Intersection Roadside or Sidewalk Point 12 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Descending S Angle In Intersection On Roadway Point 11 Power Unit None Van - 1 to 8 seats Going Straight Descending E Angle In Intersection On Roadway Point 3 Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Turning Left Ascending N Rear-End Turning In Intersection Point 8 Power Unit None Pickup Going Straight Ascending N Rear-End Turning In Intersection On Roadway Point 11 Power Unit Following Too Close Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions

84 Accident # Segment Code Milepost Vehicle Type Driver Action Lane Direction Unit Travel Direction Most Harmful Event Event Relation to Junction Event Relation To Road Vehicle Hit At Contributing Circumstance Pickup Passing Ascending E Same Direction Turning Intersection Related Point 2 Power Unit Improper Overtaking Other Turning Left Ascending E Same Direction Turning Intersection Related On Roadway Point 9 Power Unit None Pickup Going Straight Descending S Angle Turning Intersection Related Point 1 Power Unit None SUV/Crossover Turning Right Descending E Angle Turning Intersection Related On Roadway Point 8 Power Unit Failed to Obey Stop Sign Pickup Going Straight Ascending N Jackknifed Nonjunction Right Shoulder Point 7 Power Unit Speed Too Fast For Conditions Motorcycle Going Straight Descending S Overturn Nonjunction On Roadway Point 10 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Parked Car Nonjunction Right Shoulder Point 1 Power Unit Vision Obstruction Pickup Parked Vehicle Ascending N Parked Car Nonjunction Point 8 #1 Trailing Unit None Car Negotiating Curve Descending S Guardrail Face Nonjunction Right Shoulder Point 1 Power Unit Animal(s) in Roadway SUV/Crossover Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Van - 1 to 8 seats Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 11 Power Unit Animal(s) in Roadway Tractor - 1 Trailer Going Straight Descending S Jackknifed Nonjunction Right Shoulder Point 9 Power Unit None Car Going Straight Descending S Fence Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 11 Power Unit None Tractor - 2 Trailers Going Straight Ascending E Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Car Going Straight Ascending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 1 Power Unit None Tractor - 1 Trailer Turning Right Ascending N Fence Nonjunction Private Property Point 4 Power Unit None Tractor - 1 Trailer Turning Right Ascending N Fence Nonjunction On Roadway No Impact None Pickup/Van/Panel/SUV Going Straight Descending N Overturn Nonjunction Left Shoulder Point 6 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 8 Power Unit Speed Too Fast For Conditions Car Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Car Avoiding Obstacle Ascending S Overturn Nonjunction Left Shoulder Point 10 Power Unit Overcorrected Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 3 Power Unit Failed to Maintain Lane SUV/Crossover Negotiating Curve Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Car Negotiating Curve Ascending N Ditch Nonjunction Right Shoulder Point 12 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending S Overturn Nonjunction Left Shoulder Top And Windows Power Unit None Tractor - 1 Trailer Going Straight Descending S Vehicle Equipment Failure (Blown Tire/Brake Failu Nonjunction On Roadway Point 12 Power Unit Tire Defect Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway SUV/Crossover Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Top And Windows Power Unit Speed Too Fast For Conditions Tractor - 1 Trailer Going Straight Ascending N Jackknifed Nonjunction On Roadway Point 5 Power Unit Speed Too Fast For Conditions Van - 1 to 8 seats Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None Pickup/Van/Panel/SUV Going Straight Ascending E Other Nonjunction On Roadway Point 4 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Descending N Guardrail End Nonjunction Left Shoulder Top And Windows Power Unit None Pickup Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 9 Power Unit Speed Too Fast For Conditions Car Going Straight Descending E Guardrail Face Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Car Going Straight Ascending N Embankment At Driveway/Alley/Parking Lot Right Shoulder Point 11 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending N Guardrail Face Nonjunction Left Shoulder Point 11 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Descending N Other Fixed Object Nonjunction Off Roadway-Location Unknown Point 12 Power Unit Speed Too Fast For Conditions SUV/Crossover Negotiating Curve Descending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending S Overturn Nonjunction Left Shoulder Point 12 Power Unit Speed Too Fast For Conditions Pickup Going Straight Ascending N Jackknifed Nonjunction Right Shoulder Point 4 Power Unit Speed Too Fast For Conditions Van - 1 to 8 seats Going Straight Ascending S Embankment Nonjunction Left Shoulder Point 1 Power Unit Speed Too Fast For Conditions Pickup/Van/Panel/SUV Going Straight Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions SUV/Crossover Going Straight Descending S Other Object Not Fixed Nonjunction On Roadway Undercarriage Power Unit None Truck - 3+ Axle Going Straight Descending N Separation of Units Nonjunction On Roadway No Impact Other Vehicle Defect Pickup Going Straight Ascending N Animal - Wild Nonjunction On Roadway Point 12 Power Unit None SUV/Crossover Going Straight Descending W Animal - Wild Nonjunction On Roadway Point 12 Power Unit Vision Obstruction Pickup Going Straight Descending S Animal - Wild Nonjunction On Roadway Point 12 Power Unit Animal(s) in Roadway Pickup Negotiating Curve Ascending N Overturn Nonjunction On Roadway Point 3 Power Unit Speed Too Fast For Conditions Pickup Negotiating Curve Ascending N Overturn Nonjunction Right Shoulder Point 10 Power Unit Speed Too Fast For Conditions

85 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 50 None Clear Dry Day 0 2 Wednesday 09 11C /13/ C Injury Accident -U N U.S. Highway None None C /13/ C Injury Accident -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Monday 10 12C /5/ Property Dmg Report N N U.S. Highway None None C /5/ Property Dmg Report N N U.S. Highway None None 00 High/Low Shoulder Cloudy Ice Day 0 1 Saturday 08 14C760 1/11/ A Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 23 14C942 7/23/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 22 10C270 8/6/ Property Dmg Report N U.S. Highway None None C270 8/6/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Monday 16 13C450 12/23/ Property Dmg Report N N U.S. Highway None None 51 None Clear Dry Dark, No Street Lights 0 0 Sunday 18 13C718 11/10/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 1 Monday 09 10C285 12/20/ B Injury Accident N U.S. Highway Improper Overtaking None 50 None Clear Dry Dawn or Dusk 0 0 Sunday 20 10C /12/ Property Dmg Report N U.S. Highway None None C /12/ Property Dmg Report N U.S. Highway None None C /12/ Property Dmg Report N U.S. Highway None None C /12/ Property Dmg Report N U.S. Highway Vision Obstruction None 50 None Snow Snow Dark, No Street Lights 0 0 Saturday 20 11C /8/ Property Dmg Report N U.S. Highway None None C /8/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Dry Dark, No Street Lights 0 1 Tuesday 06 14C 9/16/ C Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Monday -U 10C /31/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 19 12C /17/ Property Dmg Report N N U.S. Highway None None C /17/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 1 Thursday 12 14C823 7/10/ B Injury Accident N N U.S. Highway None None C823 7/10/ B Injury Accident N N U.S. Highway None None 50 None Blowing Snow Ice Day 0 0 Tuesday 13 13C537 12/3/ Property Dmg Report N N U.S. Highway None None C537 12/3/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 2 Friday 14 13C /30/ C Injury Accident N N U.S. Highway None None C /30/ C Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 14 11C /23/ Property Dmg Report N N U.S. Highway None None C /23/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 00 13C344 4/27/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 1 Saturday 08 13C 11/16/ A Injury Accident N N U.S. Highway None None 50 None Sleet/Hail Slush Dark, No Street Lights 0 1 Saturday 22 14C628 4/26/ B Injury Accident N N U.S. Highway Improper Turn None 50 None Clear Dry Day 0 4 Sunday 15 13C356 9/8/ A Injury Accident N N U.S. Highway None None C356 9/8/ A Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 3 Saturday 23 14C971 7/26/ C Injury Accident -U N U.S. Highway None None C971 7/26/ C Injury Accident -U N U.S. Highway None None 50 None Snow Ice Day 0 0 Thursday 14 14C064 1/9/ Property Dmg Report N N U.S. Highway None None C064 1/9/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday -U 13C /26/ Property Dmg Report N N U.S. Highway None None C /26/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Saturday 23 12C /16/ Property Dmg Report N N U.S. Highway None None 00 High/Low Shoulder Cloudy Ice Day 0 3 Thursday 09 13C483 12/5/ B Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 17 14C409 8/15/ Property Dmg Report -U N U.S. Highway None None C409 8/15/ Property Dmg Report -U N U.S. Highway None None 50 None Snow Snow Dark, No Street Lights 0 0 Sunday 19 11C289 2/20/ Property Dmg Report N U.S. Highway None None 00 None Snow Snow Day 0 0 Saturday 09 10C /3/ Property Dmg Report N U.S. Highway None None 50 None Snow Snow Day 0 0 Saturday 09 10C /3/ Property Dmg Report N U.S. Highway None None C /3/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Wet Day 0 2 Friday 10 14C697 11/21/ A Injury Accident N N U.S. Highway None None C697 11/21/ A Injury Accident N N U.S. Highway None None 00 None Clear Dry Day 0 1 Tuesday 16 12C /29/ C Injury Accident N N U.S. Highway None None 00 None Snow Ice Day 0 0 Thursday 06 10C /6/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 2 Saturday 15 12C /22/ B Injury Accident N N U.S. Highway None None C /22/ B Injury Accident N N U.S. Highway Inattention None 50 None Clear Dry Day 0 1 Friday 18 10C /27/ B Injury Accident N U.S. Highway None None C /27/ B Injury Accident N U.S. Highway None None C /27/ B Injury Accident N U.S. Highway None None 51 None Clear Dry Day 0 3 Tuesday 12 11C307 10/25/ A Injury Accident N N U.S. Highway None None C307 10/25/ A Injury Accident N N U.S. Highway Failed to Yield None 50 None Clear Dry Day 0 1 Thursday 18 10C /19/ C Injury Accident N U.S. Highway None None C /19/ C Injury Accident N U.S. Highway None None 51 None Cloudy Dry Day 0 0 Thursday -U 11C /14/ Property Dmg Report N N U.S. Highway None None C /14/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 1 2 Friday 12 13C /21/ Fatal Accident N N U.S. Highway None None C /21/ Fatal Accident N N U.S. Highway None None 50 None Clear Dry Dark, Street Lights On 0 2 Sunday 22 10C269 7/4/ A Injury Accident N U.S. Highway None None C269 7/4/ A Injury Accident N U.S. Highway Failed to Yield None 50 None Clear Dry Day 0 1 Friday -U 10C /11/ B Injury Accident N U.S. Highway None None C /11/ B Injury Accident N U.S. Highway None None 50 None Clear Dry Day 0 1 Saturday 13 10C277 9/4/ B Injury Accident N U.S. Highway None None C277 9/4/ B Injury Accident N U.S. Highway

86 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 50 None Clear Dry Dark, No Street Lights 0 0 Thursday 21 14C800 4/3/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Saturday 00 11C /1/ Property Dmg Report -U N U.S. Highway Failed to Maintain Lane None 00 None Cloudy Dry Day 0 0 Friday 16 13C /5/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 07 12C321 6/27/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Monday 09 10C /20/ Property Dmg Report N U.S. Highway None None C /20/ Property Dmg Report N U.S. Highway None None C /20/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Dry Day 1 1 Monday 11 10C /4/ Fatal Accident N U.S. Highway None None C /4/ Fatal Accident N U.S. Highway Overcorrected None 00 None Clear Dry Dark, No Street Lights 0 0 Saturday 21 10C /7/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Wednesday 18 14C126 12/17/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Friday 01 11C /27/ Property Dmg Report N N U.S. Highway None None 00 None Fog Ice Day 0 0 Sunday 10 13C492 12/22/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Day 0 0 Thursday 11 14C721 8/14/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday 21 12C /30/ C Injury Accident N N U.S. Highway None None 00 None Sleet/Hail Wet Day 0 1 Saturday 09 10C /22/ C Injury Accident N U.S. Highway Overcorrected None 00 None Clear Dry Day 0 0 Friday 20 10C /18/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 2 Saturday 11 11C307 11/19/ C Injury Accident N N U.S. Highway None None 00 None Fog Ice Day 0 1 Wednesday 11 12C312 1/25/ C Injury Accident N N U.S. Highway None None 00 None Snow Snow Dark, No Street Lights 0 0 Friday 23 10C /2/ Property Dmg Report N U.S. Highway None None 00 None Clear Dry Day 0 0 Tuesday 14 12C /24/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 0 Sunday 08 14C920 3/30/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 1 Wednesday 15 10C /24/ C Injury Accident N U.S. Highway None None 00 None Clear Ice Day 0 0 Wednesday 10 10C /29/ Property Dmg Report N U.S. Highway Inattention Overcorrected 50 None Cloudy Dry Day 0 0 Thursday 07 10C278 8/12/ Property Dmg Report N U.S. Highway None None C278 8/12/ Property Dmg Report N U.S. Highway None None 00 None Snow Snow Day 0 1 Sunday 11 14C948 3/30/ B Injury Accident N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Wednesday 10 10C272 8/18/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 13 11C /15/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 08 12C321 6/29/ Property Dmg Report N N U.S. Highway Improper Overtaking None 50 None Clear Dry Day 0 5 Saturday 13 10C /3/ A Injury Accident N U.S. Highway None None C /3/ A Injury Accident N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 20 11C /23/ Property Dmg Report -U N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Sunday -U 12C /8/ Property Dmg Report N N U.S. Highway None None 00 High/Low Shoulder Cloudy Slush Day 0 0 Sunday 16 10C /26/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday 13 11C /30/ Property Dmg Report N U.S. Highway None None C /30/ Property Dmg Report N U.S. Highway None None 00 None Sleet/Hail Slush Day 0 0 Sunday 12 11C /17/ Property Dmg Report -U N U.S. Highway None None 00 None Snow Ice Day 0 0 Thursday 09 11C /29/ Property Dmg Report -U N U.S. Highway None None 99 None Cloudy Slush Day 0 1 Sunday 10 13C /17/ B Injury Accident N N U.S. Highway None None 50 None Clear Ice Dark, No Street Lights 0 0 Saturday 21 14C 2/15/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Snow Day 0 0 Monday 12 13C494 12/23/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 50 None Clear Ice Dark, No Street Lights 0 0 Tuesday 19 14C063 3/4/ Property Dmg Report N N U.S. Highway None None C063 3/4/ Property Dmg Report N N U.S. Highway None None 00 None Snow Other Day 0 1 Wednesday 09 11C /30/ C Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 08 10C271 8/18/ Property Dmg Report N U.S. Highway None None 50 None Snow Snow Dark, No Street Lights 0 0 Tuesday 23 14C632 4/1/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Dark, No Street Lights 0 2 Friday 18 11C /14/ A Injury Accident N U.S. Highway None None C /14/ A Injury Accident N U.S. Highway None None C /14/ A Injury Accident N U.S. Highway None None C /14/ A Injury Accident N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday 07 11C /15/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 11 14C238 6/29/ Property Dmg Report Y N U.S. Highway Following Too Close None C238 6/29/ Property Dmg Report Y N U.S. Highway None None 00 None Clear Ice Day 0 0 Monday 17 14C751 1/20/ Property Dmg Report N N U.S. Highway None None 00 None Snow Slush Day 0 0 Sunday 12 13C790 11/3/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Thursday 19 12C /31/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 23 11C297 6/25/ C Injury Accident N N U.S. Highway None None 50 None Blowing Snow Snow Day 0 0 Monday 09 12C334 12/24/ Property Dmg Report N N U.S. Highway None None 50 High/Low Shoulder Cloudy Dry Dark, No Street Lights 0 0 Monday 06 14C032 9/22/ Property Dmg Report Y N U.S. Highway None None 00 None Cloudy Wet Day 0 0 Monday 11 12C328 7/16/ Property Dmg Report Y N U.S. Highway None None 50 Ruts/Bumps/Holes Clear Dry Dark, No Street Lights 0 1 Friday 21 14C176 8/29/ B Injury Accident Y N U.S. Highway None None 00 Ruts/Bumps/Holes Cloudy Water â standing/moving Day 0 0 Thursday 10 14C156 3/6/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Saturday 03 14C773 8/30/ Property Dmg Report Y N U.S. Highway None None 00 None Snow Slush Day 0 0 Friday 14 14C318 5/9/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Friday 21 11C /18/ Property Dmg Report -U N U.S. Highway None None 50 None Cloudy Dry Day 0 3 Sunday 08 14C 9/21/ C Injury Accident N N U.S. Highway None None C 9/21/ C Injury Accident N N U.S. Highway None None 50 None Cloudy Ice Dark, No Street Lights 0 1 Wednesday 05 12C /21/ A Injury Accident N N U.S. Highway None None C /21/ A Injury Accident N N U.S. Highway None None 50 Washboard Cloudy Ice Dawn or Dusk 0 1 Sunday 16 11C /2/ B Injury Accident N U.S. Highway

87 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None C /2/ B Injury Accident N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 20 13C003 10/12/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 17 12C /11/ Property Dmg Report N N U.S. Highway None None C /11/ Property Dmg Report N N U.S. Highway None None 50 None Snow Ice Day 0 0 Monday 16 10C285 12/27/ Property Dmg Report N U.S. Highway None None C285 12/27/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Wet Day 0 0 Wednesday 15 11C307 10/5/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Sunday 13 12C316 2/19/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Dry Dawn or Dusk 0 0 Saturday 05 14C586 5/17/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Tuesday 20 13C248 11/26/ B Injury Accident N N U.S. Highway None None 00 Ruts/Bumps/Holes Snow Slush Day 0 1 Thursday 16 11C /6/ B Injury Accident -U N U.S. Highway None None 00 None Cloudy Dry Day 0 3 Sunday 18 13C /25/ A Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 09 14C576 5/17/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 1 Saturday -U 11C /31/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Saturday 16 10C266 4/3/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Friday -U 10C /12/ Property Dmg Report N U.S. Highway None None 00 None Snow Slush Dark, No Street Lights 0 1 Wednesday 01 14C886 4/23/ C Injury Accident N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Thursday 02 14C478 1/23/ Property Dmg Report N N U.S. Highway None None 50 None Snow Ice Dark, No Street Lights 0 0 Saturday 18 10C /13/ Property Dmg Report N U.S. Highway None None 00 Ruts/Bumps/Holes Cloudy Ice Day 0 1 Tuesday 11 11C /22/ C Injury Accident -U N U.S. Highway None None 00 None Clear Snow Day 0 0 Friday 12 12C /27/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Ice Day 0 0 Monday 11 12C /2/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Friday 17 11C /18/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Day 0 0 Thursday 06 13C /6/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 13C740 11/6/ Property Dmg Report N N U.S. Highway None None 50 None Snow Ice Day 0 0 Tuesday 10 10C /9/ Property Dmg Report N U.S. Highway None None C /9/ Property Dmg Report N U.S. Highway None None C /9/ Property Dmg Report N U.S. Highway None None 50 None Sleet/Hail Slush Day 0 0 Tuesday 18 14C090 9/30/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Slush Day 0 0 Friday 14 14C304 5/9/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Monday 03 10C /13/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Friday 23 13C /21/ B Injury Accident N N U.S. Highway None None 50 None Cloudy Ice Day 0 1 Tuesday 11 11C /22/ B Injury Accident N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Thursday 12 11C /17/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Ice Day 0 0 Friday 10 10C /12/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Slush Day 0 0 Monday 13 12C /19/ Property Dmg Report N N U.S. Highway None None 00 None Blowing Snow Ice Day 0 0 Friday 13 11C /18/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Sunday 21 14C873 5/4/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Day 0 1 Saturday 12 11C /5/ C Injury Accident N N U.S. Highway None None 00 None Clear Dry Day 0 0 Sunday 00 12C /29/ Property Dmg Report Y N U.S. Highway None None 00 None Rain Wet Day 0 2 Tuesday 10 11C /15/ C Injury Accident -U N U.S. Highway None None 00 Poor Pavement Markings Clear Dry Dark, No Street Lights 0 0 Saturday 00 12C /11/ Property Dmg Report Y N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Sunday 13 11C /20/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Thursday 04 14C286 3/20/ Property Dmg Report N N U.S. Highway None None 50 None Fog Snow Dark, No Street Lights 0 2 Monday 19 13C160 12/23/ A Injury Accident N N U.S. Highway None None C160 12/23/ A Injury Accident N N U.S. Highway None None 00 None Cloudy Water â standing/moving Day 0 1 Tuesday 14 11C307 10/11/ A Injury Accident N N U.S. Highway None None 00 None Snow Slush Day 0 0 Wednesday -U 13C506 11/20/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Day 0 0 Monday 09 12C319 2/13/ Property Dmg Report N N U.S. Highway None None 00 None Snow Slush Day 0 1 Friday 07 12C /27/ B Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Friday 09 10C /26/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Wet Dawn or Dusk 0 0 Thursday 18 12C /29/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 16 12C /16/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 1 Wednesday -U 10C285 12/15/ C Injury Accident N U.S. Highway None None 00 None Clear Dry Day 0 0 Monday 08 14C629 5/26/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Dark, No Street Lights 0 1 Thursday 00 11C /27/ C Injury Accident N U.S. Highway None None C /27/ C Injury Accident N U.S. Highway None None 50 None Clear Dry Dark, Street Lights Off 0 0 Sunday 21 13C /12/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Thursday 10 11C /20/ Property Dmg Report N U.S. Highway None None C /20/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 22 13C /14/ B Injury Accident N N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Dawn or Dusk 1 0 Saturday 06 11C /23/ Fatal Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 22 13C019 10/14/ Property Dmg Report N N U.S. Highway None None 50 None Rain Wet Dark, No Street Lights 0 1 Tuesday 21 11C /5/ B Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday 21 12C324 8/5/ Property Dmg Report N N U.S. Highway None None 00 None Clear Snow Day 0 0 Thursday 09 14C742 4/3/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 1 Thursday 14 11C /17/ C Injury Accident -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 23 10C /11/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Monday 10 12C328 10/1/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 20 11C /18/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Tuesday 11 11C /28/ Property Dmg Report -U N U.S. Highway

88 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 50 None Clear Dry Dark, No Street Lights 0 1 Wednesday 01 10C /26/ B Injury Accident N U.S. Highway None None C /26/ B Injury Accident N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Monday 08 14C049 10/27/ Property Dmg Report -U N U.S. Highway None None C049 10/27/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Sunday -U 12C /1/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 01 11C307 11/6/ Property Dmg Report N N U.S. Highway None None 00 High/Low Shoulder Clear Dry Dark, No Street Lights 0 0 Monday 00 12C /5/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Sunday 22 11C /16/ Property Dmg Report -U N U.S. Highway None None 50 None Rain Wet Day 0 0 Friday 10 12C /25/ Property Dmg Report -U N U.S. Highway Vision Obstruction None 50 None Fog Dry Dark, No Street Lights 0 0 Saturday 18 10C /6/ Property Dmg Report N U.S. Highway None None C /6/ Property Dmg Report N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 0 Friday 16 10C /22/ Property Dmg Report N U.S. Highway None Other 50 None Clear Dry Day 0 0 Thursday 12 10C /30/ Property Dmg Report N U.S. Highway None Other C /30/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Tuesday 05 13C /7/ Property Dmg Report N N U.S. Highway Vision Obstruction None 50 None Clear Dry Dark, No Street Lights 0 0 Monday -U 10C /11/ Property Dmg Report N U.S. Highway None None C /11/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 1 Sunday -U 10C /2/ C Injury Accident N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 02 11C /22/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Wednesday -U 10C /20/ Property Dmg Report N U.S. Highway None None 00 None Rain Wet Day 0 0 Thursday 04 13C028 10/10/ Property Dmg Report -U N U.S. Highway None None C028 10/10/ Property Dmg Report -U N U.S. Highway Failed to Maintain Lane None 00 None Blowing Snow Ice Dark, Street Lights On 0 2 Tuesday 15 12C337 10/16/ C Injury Accident N N U.S. Highway Failed to Maintain Lane None 00 None Cloudy Wet Day 0 0 Sunday 14 12C /28/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 0 Tuesday 12 11C /20/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Saturday 23 11C /24/ B Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 16 14C956 7/30/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 1 Friday 10 11C /18/ C Injury Accident -U N U.S. Highway None None 50 None Cloudy Snow Dawn or Dusk 0 0 Thursday 06 13C772 11/7/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 0 Sunday 14 13C563 12/1/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 00 11C /20/ Property Dmg Report -U N U.S. Highway Failed to Maintain Lane None 00 None Snow Snow Day 0 0 Saturday 08 14C 12/13/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 0 Friday 15 12C /6/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 1 Saturday 01 11C /12/ B Injury Accident -U N U.S. Highway None None 50 None Rain Wet Dark, No Street Lights 0 0 Wednesday -U 10C /26/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 1 Saturday 07 10C /30/ C Injury Accident N U.S. Highway None None 00 None Clear Dry Dawn or Dusk 0 0 Friday 06 12C /17/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 11 14C 6/14/ Property Dmg Report N N U.S. Highway None None C 6/14/ Property Dmg Report N N U.S. Highway None None 50 None Rain Wet Day 0 0 Tuesday 13 14C046 8/5/ Property Dmg Report N N U.S. Highway None None C046 8/5/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 2 Friday 08 11C /26/ C Injury Accident N N U.S. Highway None None C /26/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Wednesday 09 10C /8/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Slush Day 0 0 Sunday 16 10C /31/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Monday 22 10C /18/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 00 13C /1/ Property Dmg Report -U N U.S. Highway None None 50 None Cloudy Ice Dark, No Street Lights 0 0 Monday 17 10C /20/ Property Dmg Report N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Dark, No Street Lights 0 0 Monday 19 12C /31/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Thursday 03 13C301 1/24/ Property Dmg Report N N U.S. Highway Vision Obstruction None 50 None Cloudy Snow Day 0 0 Thursday 14 10C /21/ Property Dmg Report N U.S. Highway None None C /21/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 0 Thursday 16 11C /27/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Ice Day 0 0 Thursday 11 11C /17/ Property Dmg Report N U.S. Highway None None C /17/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 15 11C /11/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 1 Sunday 09 13C /18/ A Injury Accident N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday -U 13C /16/ C Injury Accident N N U.S. Highway None None 00 High/Low Shoulder Clear Ice Day 0 0 Monday 12 11C307 11/7/ Property Dmg Report N N U.S. Highway None None 00 High/Low Shoulder Snow Ice Day 0 1 Friday 07 14C247 3/7/ B Injury Accident N N U.S. Highway None None 00 None Snow Ice Day 0 0 Wednesday -U 10C /10/ Property Dmg Report N U.S. Highway Drove Left of Center None 50 Ruts/Bumps/Holes Clear Ice Day 0 0 Tuesday 09 10C285 12/21/ Property Dmg Report N U.S. Highway None None C285 12/21/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday 14 14C083 6/29/ Property Dmg Report -U N U.S. Highway None None C083 6/29/ Property Dmg Report -U N U.S. Highway Exceeded Posted Speed None 50 None Snow Ice Dawn or Dusk 0 1 Tuesday 17 11C /4/ B Injury Accident N U.S. Highway None None C /4/ B Injury Accident N U.S. Highway None None 50 None Clear Ice Day 0 0 Friday 14 10C /12/ Property Dmg Report N U.S. Highway None None 00 High/Low Shoulder Clear Dry Day 0 0 Sunday 16 11C /10/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 1 Wednesday 21 10C274 8/18/ C Injury Accident N U.S. Highway Speed Too Fast For Conditions None 50 None Clear Ice Day 0 0 Saturday 10 12C /27/ Property Dmg Report N N U.S. Highway

89 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None C /27/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 1 Friday 16 14C688 5/23/ C Injury Accident -U N U.S. Highway None None 50 None Dry Dark, No Street Lights 0 0 Sunday -U 12C /20/ Property Dmg Report N N U.S. Highway None None 50 None Clear Ice Day 0 0 Saturday 16 13C 1/12/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Thursday 00 11C /3/ Property Dmg Report -U N U.S. Highway None None 00 Other Snow Snow Day 0 0 Wednesday 17 11C /6/ Property Dmg Report -U N U.S. Highway Failed to Yield None 50 None Clear Dry Day 0 1 Sunday 10 12C /29/ A Injury Accident N N U.S. Highway None None C /29/ A Injury Accident N N U.S. Highway None None 50 High/Low Shoulder Clear Dry Day 0 2 Sunday 08 14C016 8/10/ C Injury Accident N N U.S. Highway None None 00 None Rain Slush Day 0 0 Wednesday 12 12C /14/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Cloudy Snow Day 0 1 Saturday 11 12C /27/ A Injury Accident N N U.S. Highway None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Saturday 04 14C006 2/1/ Property Dmg Report -U N U.S. Highway Drove Left of Center None 50 None Sleet/Hail Water â standing/moving Day 0 0 Wednesday 14 13C /18/ Property Dmg Report N N U.S. Highway None None C /18/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Wet Day 0 0 Tuesday 15 14C645 6/3/ Property Dmg Report N N U.S. Highway Failed to Obey Stop Sign None C645 6/3/ Property Dmg Report N N U.S. Highway None None C645 6/3/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 01 11C /16/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 00 14C853 7/12/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 1 Monday 03 14C468 9/15/ C Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 12 14C592 11/8/ Property Dmg Report -U N U.S. Highway None None 00 None Cloudy Slush Day 0 1 Sunday 14 13C /7/ B Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 12 12C /8/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dark, Street Lights On 0 0 Monday 20 11C307 11/7/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Day 0 0 Sunday 16 11C /3/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Day 0 2 Sunday 11 14C287 3/30/ B Injury Accident N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Saturday 14 11C /31/ Property Dmg Report N N U.S. Highway None None C /31/ Property Dmg Report N N U.S. Highway None None 50 None Clear Ice Day 0 0 Thursday 16 10C /4/ Property Dmg Report N U.S. Highway None None 00 Loose Gravel/Seal Coat Clear Dry Day 0 0 Friday 04 13C /6/ Property Dmg Report N N U.S. Highway Drove Left of Center None 50 None Snow Snow Dark, No Street Lights 0 0 Sunday 18 14C105 10/26/ Property Dmg Report N N U.S. Highway None None C105 10/26/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Monday -U 12C /23/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Wednesday 10 11C /30/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Dark, No Street Lights 0 0 Monday 22 14C497 3/17/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Friday 05 14C772 8/1/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 21 12C /18/ Property Dmg Report N N U.S. Highway None Other 00 None Cloudy Ice Day 0 0 Wednesday 10 10C286 12/22/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 10 11C307 8/20/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 10 13C /26/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Wet Day 0 0 Tuesday 17 14C960 7/29/ Property Dmg Report N N U.S. Highway None None C960 7/29/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Clear Ice Dark, No Street Lights 0 0 Thursday 18 12C350 12/27/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 1 Thursday 06 12C /19/ B Injury Accident N N U.S. Highway None None 50 None Snow Ice Day 0 0 Saturday 13 10C /20/ Property Dmg Report N U.S. Highway Inattention None C /20/ Property Dmg Report N U.S. Highway None None 99 None Cloudy Ice Day 0 0 Friday 15 11C285 1/7/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Dry Day 0 1 Wednesday 17 11C /11/ C Injury Accident -U N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Saturday 06 11C /2/ Property Dmg Report N N U.S. Highway None None 50 None Rain Wet Dark, No Street Lights 0 0 Friday 20 13C /13/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 23 11C /18/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Saturday 16 10C /2/ Property Dmg Report N U.S. Highway None None 50 None Clear Ice Day 0 0 Thursday 10 13C 11/21/ Property Dmg Report N N U.S. Highway None None C 11/21/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 21 12C /2/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 1 Friday -U 12C /13/ C Injury Accident N N U.S. Highway None None 50 None Clear Ice Day 0 0 Sunday 15 10C /10/ Property Dmg Report N U.S. Highway None None C /10/ Property Dmg Report N U.S. Highway None Failed to Yield 50 None Clear Dry Dark, No Street Lights 0 3 Wednesday 19 14C277 10/15/ A Injury Accident N N U.S. Highway None None C277 10/15/ A Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, Street Lights Off 0 0 Sunday 05 10C /26/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Wednesday 10 10C /15/ Property Dmg Report N U.S. Highway None None 50 None Snow Ice Dawn or Dusk 0 3 Thursday 17 13C309 1/24/ C Injury Accident N N U.S. Highway None None 00 Other Snow Ice Dark, No Street Lights 0 0 Tuesday 20 11C /18/ Property Dmg Report -U N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Tuesday 13 11C /8/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Wednesday -U 11C /2/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday 13 13C /25/ Property Dmg Report N N U.S. Highway None None C /25/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Tuesday 20 11C /29/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 10C /6/ Property Dmg Report N U.S. Highway None None 00 None Clear Dry Day 0 1 Thursday 12 11C /15/ C Injury Accident N N U.S. Highway

90 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 50 None Snow Snow Day 0 1 Monday 09 13C /8/ A Injury Accident N N U.S. Highway None None C /8/ A Injury Accident N N U.S. Highway None None 50 None Snow Ice Day 0 0 Sunday 14 11C /6/ Property Dmg Report N N U.S. Highway None None C /6/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Dry Day 0 1 Sunday 17 12C /1/ C Injury Accident N N U.S. Highway None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Monday 21 13C /8/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Friday 09 13C /4/ Property Dmg Report N N U.S. Highway None None C /4/ Property Dmg Report N N U.S. Highway None None 50 None Clear Ice Day 0 0 Thursday 12 12C /5/ Property Dmg Report -U N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Monday 09 13C063 12/30/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Tuesday 08 11C /5/ Property Dmg Report -U N U.S. Highway None None 50 None Snow Ice Day 0 2 Monday 08 11C /21/ B Injury Accident -U N U.S. Highway None None C /21/ B Injury Accident -U N U.S. Highway None None 51 None Clear Dry Dark, No Street Lights 0 1 Wednesday 03 11C /24/ A Injury Accident N N U.S. Highway None None C /24/ A Injury Accident N N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Friday -U 11C /4/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 21 13C /28/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 1 Friday 12 10C /12/ C Injury Accident N U.S. Highway None None 00 None Cloudy Ice Day 0 3 Sunday 11 13C470 12/22/ C Injury Accident N N U.S. Highway None Speed Too Fast For Conditions 00 None Snow Slush Day 0 0 Tuesday 09 10C263 4/13/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Thursday -U 10C /28/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Dry Day 0 0 Sunday 08 12C /14/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 2 Wednesday 20 10C /10/ C Injury Accident N U.S. Highway None None 50 None Cloudy Dry Dark, No Street Lights 0 0 Friday -U 11C /14/ Property Dmg Report N N U.S. Highway Improper Overtaking Speed Too Fast For Conditions 50 None Cloudy Snow Day 0 0 Monday 14 10C /25/ Property Dmg Report N U.S. Highway None None C /25/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Friday 02 10C /5/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Saturday 14 11C /5/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Saturday 12 11C /31/ Property Dmg Report -U N U.S. Highway None None C /31/ Property Dmg Report -U N U.S. Highway Overcorrected None 00 None Cloudy Ice Dark, No Street Lights 0 0 Friday 21 10C /26/ Property Dmg Report N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 02 11C /27/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Slush Day 0 0 Wednesday 15 10C /27/ Property Dmg Report N U.S. Highway None None 50 Other Blowing Snow Ice Day 0 1 Wednesday 09 12C /29/ C Injury Accident N N U.S. Highway None None C /29/ C Injury Accident N N U.S. Highway None None 50 None Cloudy Ice Dark, No Street Lights 0 0 Wednesday 18 10C /24/ Property Dmg Report N U.S. Highway None None C /24/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 0 Friday 14 10C /10/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Day 0 0 Saturday -U 12C /21/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 12 13C /21/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Day 0 0 Friday 09 10C /29/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 1 Monday 13 10C /1/ C Injury Accident N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday 13 10C272 7/18/ Property Dmg Report N U.S. Highway None None C272 7/18/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Thursday -U 11C /3/ Property Dmg Report N U.S. Highway Failed to Maintain Lane None 00 None Clear Ice Day 0 0 Thursday 12 12C /22/ Property Dmg Report N N U.S. Highway Drove Left of Center None 50 None Clear Dry Dark, No Street Lights 1 1 Friday 02 10C /16/ Fatal Accident N U.S. Highway None None C /16/ Fatal Accident N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 1 Sunday 19 10C /3/ C Injury Accident N U.S. Highway None None 50 None Snow Ice Dawn or Dusk 0 0 Monday 18 11C /21/ Property Dmg Report -U N U.S. Highway None None C /21/ Property Dmg Report -U N U.S. Highway Failed to Maintain Lane None 00 None Cloudy Ice Day 0 0 Thursday 12 12C333 11/29/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Day 0 0 Friday -U 10C /12/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Dry Day 0 4 Wednesday 11 13C /29/ B Injury Accident N N U.S. Highway None None 00 None Snow Ice Day 0 0 Wednesday 09 10C /3/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Dark, Street Lights On 0 0 Saturday 10 10C /13/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Friday 11 10C /15/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Ice Day 0 0 Thursday 16 10C /23/ Property Dmg Report N U.S. Highway None None C /23/ Property Dmg Report N U.S. Highway None None 50 None Clear Ice Day 0 0 Sunday 09 11C /27/ Property Dmg Report -U N U.S. Highway None None C /27/ Property Dmg Report -U N U.S. Highway Improper Turn None 50 None Snow Ice Dark, No Street Lights 0 0 Saturday 17 11C /19/ Property Dmg Report -U N U.S. Highway None None C /19/ Property Dmg Report -U N U.S. Highway None None 50 None Snow Ice Dawn or Dusk 0 0 Saturday 16 11C /19/ Property Dmg Report -U N U.S. Highway None None C /19/ Property Dmg Report -U N U.S. Highway Speed Too Fast For Conditions None 51 None Snow Ice Day 0 0 Monday 13 12C314 2/20/ Property Dmg Report N N U.S. Highway None None C314 2/20/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 0 Sunday 19 11C /6/ Property Dmg Report N N U.S. Highway Alcohol Impaired None 50 None Cloudy Dry Day 1 2 Saturday 17 14C 2/1/ Fatal Accident N N U.S. Highway None None C 2/1/ Fatal Accident N N U.S. Highway None None 50 None Snow Ice Day 0 2 Friday -U 10C /12/ B Injury Accident N U.S. Highway None None C /12/ B Injury Accident N U.S. Highway None None 00 None Clear Snow Day 0 0 Sunday 13 10C /21/ Property Dmg Report N U.S. Highway

91 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 50 None Cloudy Ice Day 0 0 Friday 11 10C /15/ Property Dmg Report N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Dawn or Dusk 0 1 Tuesday 01 12C327 9/11/ B Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Thursday 08 10C /25/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 0 Tuesday 08 13C /9/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Clear Dry Day 0 1 Monday -U 13C /15/ A Injury Accident N N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Tuesday 08 10C /4/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Thursday 17 11C /3/ Property Dmg Report -U N U.S. Highway None None C /3/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Friday -U 13C /19/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Sunday 02 13C /21/ Property Dmg Report N N U.S. Highway None None 50 None Snow Ice Day 0 0 Tuesday -U 10C /9/ Property Dmg Report N U.S. Highway None None C /9/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 0 Sunday 08 12C /1/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Sunday 14 10C /14/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 0 Sunday 10 12C /1/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Dark, No Street Lights 0 0 Saturday 01 12C /7/ Property Dmg Report N N U.S. Highway None None 00 None Sleet/Hail Wet Day 0 2 Saturday 07 10C /22/ A Injury Accident N U.S. Highway None None 00 None Rain Wet Day 0 1 Saturday 12 10C279 8/28/ B Injury Accident N U.S. Highway None None 51 None Cloudy Wet Day 0 1 Monday 14 11C /13/ A Injury Accident N N U.S. Highway None None 50 None Severe Cross Winds Ice Day 0 0 Thursday 15 11C /29/ Property Dmg Report N N U.S. Highway None None C /29/ Property Dmg Report N N U.S. Highway Speed Too Fast For Conditions None 00 None Clear Ice Day 0 0 Tuesday 10 12C /18/ Property Dmg Report N N U.S. Highway None None 00 None Fog Ice Dark, No Street Lights 0 0 Wednesday -U 10C /20/ Property Dmg Report N U.S. Highway None None 00 None Clear Ice Day 0 1 Tuesday 11 12C310 1/3/ C Injury Accident N N U.S. Highway None None 50 None Clear Ice Dark, No Street Lights 0 0 Monday 05 14C295 10/27/ Property Dmg Report N N U.S. Highway Speed Too Fast For Conditions None 50 None Blowing Snow Ice Day 0 0 Tuesday 09 12C /23/ Property Dmg Report N N U.S. Highway None None 00 None Sleet/Hail Ice Day 0 1 Saturday 11 11C /28/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Sunday 12 13C902 12/8/ Property Dmg Report N N U.S. Highway Speed Too Fast For Conditions None 50 None Cloudy Snow Day 0 0 Monday -U 13C728 11/4/ Property Dmg Report N N U.S. Highway None None C728 11/4/ Property Dmg Report N N U.S. Highway None None 00 Other Severe Cross Winds Ice Day 0 0 Thursday 04 10C /18/ Property Dmg Report N U.S. Highway None None 00 None Clear Dry Day 0 1 Tuesday -U 11C /28/ C Injury Accident N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 06 12C /26/ Property Dmg Report -U N U.S. Highway None None C /26/ Property Dmg Report -U N U.S. Highway None None 50 Other Clear Dry Dawn or Dusk 0 4 Wednesday 21 14C021 7/23/ A Injury Accident N N U.S. Highway None None 50 None Snow Ice Day 0 1 Saturday 07 11C /26/ B Injury Accident -U N U.S. Highway None None 50 None Cloudy Ice Day 0 11 Wednesday 12 12C /18/ A Injury Accident N N U.S. Highway None None C /18/ A Injury Accident N N U.S. Highway None None C /18/ A Injury Accident N N U.S. Highway None None C /18/ A Injury Accident N N U.S. Highway None None 50 None Clear Dry Day 0 1 Friday 09 11C /19/ C Injury Accident N N U.S. Highway None None C /19/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Tuesday 16 10C /19/ Property Dmg Report N U.S. Highway None None 00 None Blowing Snow Ice Dark, No Street Lights 0 0 Wednesday 16 11C /28/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Tuesday 10 12C /17/ Property Dmg Report N N U.S. Highway Failed to Yield Speed Too Fast For Conditions 50 None Cloudy Ice Day 0 1 Monday 15 10C289 12/20/ B Injury Accident N U.S. Highway None None C289 12/20/ B Injury Accident N U.S. Highway None None C289 12/20/ B Injury Accident N U.S. Highway None None 50 None Blowing Snow Ice Dark, No Street Lights 0 1 Sunday 22 14C633 3/30/ B Injury Accident N N U.S. Highway None None 00 None Clear Dry Day 0 0 Wednesday 09 14C243 7/2/ Property Dmg Report -U N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Wednesday 09 10C /13/ Property Dmg Report N U.S. Highway None None 00 None Blowing Snow Ice Day 0 0 Sunday 10 14C060 1/5/ Property Dmg Report N N U.S. Highway None None 00 None Blowing Snow Ice Dark, No Street Lights 0 1 Tuesday -U 11C /22/ C Injury Accident N N U.S. Highway Steering Speed Too Fast For Conditions 00 None Severe Cross Winds Ice Dark, No Street Lights 0 0 Sunday 00 14C617 11/30/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Friday 11 11C /8/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Day 0 0 Wednesday 20 10C /2/ Property Dmg Report N U.S. Highway Vision Obstruction None 00 None Cloudy Snow Day 0 1 Tuesday 11 11C /29/ C Injury Accident -U N U.S. Highway None None 00 None Clear Ice Day 0 0 Wednesday 10 10C /17/ Property Dmg Report N U.S. Highway None None 00 None Snow Snow Day 0 0 Tuesday 08 10C /16/ Property Dmg Report N U.S. Highway None None 50 None Cloudy Snow Day 0 0 Saturday 13 11C /5/ Property Dmg Report N N U.S. Highway None None 00 None Blowing Snow Ice Day 0 0 Wednesday 14 11C /28/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Day 0 0 Saturday 13 12C /7/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Snow Day 0 2 Thursday 10 14C177 2/13/ A Injury Accident N N U.S. Highway None None C177 2/13/ A Injury Accident N N U.S. Highway Failed to Maintain Lane None 00 None Clear Ice Day 0 0 Friday 13 12C /23/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Saturday 13 12C /7/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Saturday 21 14C940 7/26/ Property Dmg Report N N U.S. Highway None None 00 None Cloudy Snow Dark, No Street Lights 0 0 Monday 20 10C /1/ Property Dmg Report N U.S. Highway None None 50 None Snow Ice Day 0 0 Wednesday 12 11C /23/ Property Dmg Report N U.S. Highway None None C /23/ Property Dmg Report N U.S. Highway None None 50 None Clear Ice Day 0 0 Wednesday 16 11C /23/ Property Dmg Report N U.S. Highway None None C /23/ Property Dmg Report N U.S. Highway Overcorrected None 00 None Clear Ice Day 0 1 Monday 05 11C /17/ C Injury Accident N N U.S. Highway

92 Contributing Circumstance 2 Contributing Circumstance 3 Lane Road Condition Weather Surface Light Fatalities Injuries Day Hour Serial Number AccidentDate fldunitnbr Severity Work Zone Related Divided State Highway Latitude Longitude None None 51 None Clear Snow Day 0 0 Wednesday 10 12C /22/ Property Dmg Report -U N U.S. Highway None None C /22/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Ice Day 0 0 Wednesday 10 12C /14/ Property Dmg Report N N U.S. Highway None None C /14/ Property Dmg Report N N U.S. Highway None None 50 None Clear Ice Day 0 0 Friday 14 13C442 12/13/ Property Dmg Report N N U.S. Highway None None 50 None Rain Water â standing/moving Dawn or Dusk 0 1 Saturday 20 13C /6/ C Injury Accident N N U.S. Highway None None 50 None Clear Ice Dark, No Street Lights 0 0 Tuesday 21 10C /16/ Property Dmg Report N U.S. Highway Other None 00 None Snow Ice Day 0 0 Saturday 15 11C /26/ Property Dmg Report -U N U.S. Highway None None C /26/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Ice Dark, No Street Lights 0 0 Friday 20 12C /6/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Sunday 07 13C /8/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Thursday 19 12C327 9/27/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Saturday 19 12C /6/ Property Dmg Report N N U.S. Highway None None 50 None Snow Ice Dark, No Street Lights 0 1 Tuesday 22 13C 1/29/ C Injury Accident -U N U.S. Highway None None 00 None Blowing Snow Ice Day 0 0 Thursday 14 11C /17/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Wednesday 21 12C /15/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 21 12C /24/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 23 12C /1/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Monday 06 14C149 6/23/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Dry Dark, No Street Lights 0 0 Thursday 19 13C004 10/24/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Snow Day 0 0 Monday 16 13C451 12/9/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dawn or Dusk 0 0 Thursday 07 10C /29/ Property Dmg Report N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 01 12C /21/ Property Dmg Report N N U.S. Highway None None 00 None Clear Dry Day 0 1 Thursday 07 10C /15/ C Injury Accident N U.S. Highway None None 00 None Clear Ice Day 0 0 Wednesday 15 12C /4/ Property Dmg Report N N U.S. Highway None None 00 None Rain Wet Dawn or Dusk 0 0 Sunday 06 11C /19/ Property Dmg Report N N U.S. Highway Speed Too Fast For Conditions None 00 None Clear Ice Day 0 0 Sunday 09 12C /28/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Saturday 01 11C /16/ Property Dmg Report N N U.S. Highway None None 00 None Snow Snow Day 0 0 Monday -U 10C /29/ Property Dmg Report N U.S. Highway None None 00 None Cloudy Snow Day 0 1 Wednesday 06 14C467 3/26/ B Injury Accident N N U.S. Highway None None 00 None Cloudy Dry Day 0 0 Monday 14 13C /30/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Tuesday 10 12C /2/ Property Dmg Report N N U.S. Highway Failed to Maintain Lane None 00 None Cloudy Ice Dark, No Street Lights 0 0 Tuesday 21 12C /20/ Property Dmg Report N N U.S. Highway None None 50 None Cloudy Slush Day 0 0 Saturday 08 12C /17/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Dark, No Street Lights 0 0 Friday 01 14C753 11/7/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Ice Day 0 0 Saturday 09 10C /6/ Property Dmg Report N U.S. Highway None None 00 None Clear Dry Dawn or Dusk 0 0 Monday 07 14C282 10/6/ Property Dmg Report -U N U.S. Highway None None 00 None Snow Ice Day 0 0 Monday 10 11C /25/ Property Dmg Report -U N U.S. Highway None None 00 None Clear Ice Day 0 1 Saturday 09 10C /6/ C Injury Accident N U.S. Highway None None 00 None Clear Ice Day 0 0 Monday 14 11C /7/ Property Dmg Report -U N U.S. Highway None None 00 None Blowing Snow Slush Day 0 0 Wednesday 11 12C315 3/14/ Property Dmg Report N N U.S. Highway None None 00 None Clear Ice Day 0 0 Monday -U 12C /2/ Property Dmg Report N N U.S. Highway None None 50 None Clear Slush Day 0 1 Friday -U 12C /27/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 0 Monday -U 13C028 10/28/ Property Dmg Report N N U.S. Highway None None 50 None Blowing Snow Slush Day 0 0 Thursday 14 11C /26/ Property Dmg Report N N U.S. Highway None None 00 None Snow Slush Day 0 1 Saturday 14 14C913 3/29/ C Injury Accident N N U.S. Highway None None 00 None Cloudy Ice Day 0 1 Saturday -U 10C /11/ C Injury Accident N U.S. Highway None None 50 None Snow Snow Dawn or Dusk 0 0 Tuesday 06 11C /22/ Property Dmg Report N U.S. Highway None None C /22/ Property Dmg Report N U.S. Highway None None 50 None Snow Wet Dark, No Street Lights 0 0 Thursday 20 13C /3/ Property Dmg Report -U N U.S. Highway None None 50 None Clear Dry Dawn or Dusk 0 0 Sunday 18 12C /7/ Property Dmg Report N N U.S. Highway None None 50 None Clear Dry Day 0 0 Tuesday 15 14C 9/16/ Property Dmg Report N N U.S. Highway None None 50 None Snow Snow Day 0 0 Sunday 09 13C018 10/13/ Property Dmg Report N N U.S. Highway None None 00 None Snow Ice Dark, No Street Lights 0 0 Saturday 19 11C /19/ Property Dmg Report -U N U.S. Highway

93 Appendix C Weather Data

94 Appendix C - Weather Data at Henrys Lake Station ( ) Time Year Grip Level>=0.6 Water Layer>0 Ice Layer>0 Snow Layer>0 Alarm Warning Ice/Snow Layer>0 Jan Feb Mar Apr May Jun Jul Aug Sep % 0.00% 0.00% 7.13% 0.00% 7.13% Oct % 7.41% 0.08% 6.80% 0.11% 6.80% Nov % 14.95% 22.04% 55.19% 51.01% 55.61% Dec % 6.65% 41.84% 80.51% 77.44% 80.77% Jan % 23.23% 28.25% 50.46% 39.87% 51.05% Feb % 2.16% 18.46% 43.97% 43.25% 44.01% Mar % 16.19% 22.62% 32.45% 29.75% 33.10% Apr % 19.55% 12.88% 14.73% 13.89% 15.60% May % 26.81% 0.98% 0.57% 0.41% 1.12% Jun % 12.98% 0.00% 0.00% 0.04% 0.00% Jul % 4.86% 0.00% 0.00% 0.00% 0.00% Aug % 2.72% 0.00% 0.00% 0.00% 0.00% Sep % 3.03% 0.00% 0.00% 0.00% 0.00% Oct % 20.93% 1.46% 1.12% 0.78% 1.46% Nov % 8.03% 27.57% 37.58% 37.02% 37.81% Dec % 2.96% 11.99% 19.47% 19.10% 19.72% Jan % 2.41% 30.41% 55.39% 53.81% 55.39% Feb % 10.20% 22.73% 51.11% 46.74% 51.90% Mar % 24.35% 19.25% 24.72% 22.84% 25.63% Apr % 17.98% 3.71% 5.05% 4.75% 5.27% May % 14.53% 0.98% 1.05% 0.74% 1.15% Jun % 6.96% 0.00% 0.00% 0.00% 0.00% Jul % 4.35% 0.00% 0.00% 0.00% 0.00% Aug % 1.19% 0.00% 0.00% 0.03% 0.00% Sep % 5.47% 0.00% 0.00% 0.00% 0.00% Oct % 8.32% 5.80% 5.84% 5.66% 6.14% Nov % 18.20% 8.65% 11.95% 10.55% 12.38% Dec % 18.14% 61.89% 70.40% 64.28% 71.11% Jan % 12.40% 47.62% 51.87% 48.47% 51.97% Feb % 5.78% 25.48% 28.87% 26.91% 28.91% Mar % 10.67% 10.46% 12.10% 10.95% 12.31% Apr % 16.40% 7.35% 7.28% 6.71% 7.97% May % 17.95% 0.00% 0.00% 0.07% 0.00% Jun % 6.50% 0.00% 0.00% 0.00% 0.00% Jul % 4.92% 0.00% 0.00% 0.03% 0.00% Aug % 1.78% 0.00% 0.00% 0.00% 0.00% Sep % 23.23% 0.00% 0.00% 0.03% 0.00% Oct % 10.68% 0.95% 2.03% 1.45% 2.27% Nov % 17.74% 8.00% 13.06% 11.21% 13.31% Dec % 8.76% 37.33% 53.80% 50.08% 54.01% Jan % 11.58% 34.67% 37.76% 33.77% 38.74% Feb % 14.96% 25.77% 42.10% 39.49% 42.48% Mar % 17.53% 17.42% 28.29% 27.31% 29.04% Apr % 18.58% 1.94% 3.05% 2.98% 3.20% May % 11.85% 1.05% 0.94% 0.77% 1.16% Jun % 13.11% 0.00% 0.00% 0.00% 0.00% Jul % 2.29% 0.00% 0.00% 0.00% 0.00% Aug % 16.95% 0.00% 0.00% 0.03% 0.00% Sep % 16.49% 0.00% 0.00% 0.00% 0.00% Oct % 7.32% 0.30% 1.01% 0.67% 1.01% Nov % 20.31% 15.67% 18.32% 15.29% 19.61% Dec % 42.32% 35.67% 33.63% 31.00% 36.18%

95 Appendix D Comparison of 6 vs. 8 Shoulders

96 Miles 354 Existing Shoulder Width 8 Feet 6 Feet 4-5 Feet 2-3 Feet 354 Expected Change in Crashes (6' Shoulders) 0% 1-7% 8-14% 15-21% 22-28% 354 Expected Change in Crashes (8' Shoulders) 0% 1-7% 8-14% 15-21% 22-28% 29-35% Comparison of Expected Change in Crashes (6' vs. 8' Shoulders) Fremont County, Idaho Figure D-1

97 Appendix E Example Treatment Locations

98 Appendix E Potential location to: - Add Alternating Passing Lanes (2+1) Image Source: Google MP Potential location to: - Widen Shoulder MP Image Source: Google E-2 Kittelson & Associates, Inc.

99 Appendix E Potential location to: - Add Alternating Passing Lanes (2+1) - Widen Shoulders Image Source: Google MP E-3 Kittelson & Associates, Inc.